Undergraduate Courses

The courses listed below are provided by Student Information Services (SIS). This listing provides a snapshot of immediately available courses within this department and may not be complete. Course registration information can be found at https://sis.jhu.edu/classes.

Please consult the online course catalog for cross-listed courses and full course information.

Column one has the course number and section. Other columns show the course title, days offered, instructor's name, room number, if the course is cross-referenced with another pogram, and a option to view additional course information in a pop-up window.

Applied Chemical Equilibrium and Reactivity w/lab
AS.030.103 (05)

This course is designed for students who have scored a 4 or 5 on the AP Chemistry Exam or who have scored a 6 or 7 HL IB Chemistry Exam. This course will review an advanced introductory chemistry sequence in a single semester. Chemical equilibrium, reactivity and bonding will be covered. These topics will be explored through laboratory experiments and problem solving, and discussing these principles in the context of current research. For details on chemistry placement and exam credit policies, please see http://www.advising.jhu.edu/placement_chemistry.php Students who have previously enrolled in AS.030.101 or AS.030.105 may not earn credit for AS.030.103 and students enrolled in AS.030.103 may not enroll in or receive credit for AS.030.102/AS.030.106.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 1/16
  • PosTag(s): n/a

Applied Chemical Equilibrium and Reactivity w/lab
AS.030.103 (02)

This course is designed for students who have scored a 4 or 5 on the AP Chemistry Exam or who have scored a 6 or 7 HL IB Chemistry Exam. This course will review an advanced introductory chemistry sequence in a single semester. Chemical equilibrium, reactivity and bonding will be covered. These topics will be explored through laboratory experiments and problem solving, and discussing these principles in the context of current research. For details on chemistry placement and exam credit policies, please see http://www.advising.jhu.edu/placement_chemistry.php Students who have previously enrolled in AS.030.101 or AS.030.105 may not earn credit for AS.030.103 and students enrolled in AS.030.103 may not enroll in or receive credit for AS.030.102/AS.030.106.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/16
  • PosTag(s): n/a

Applied Chemical Equilibrium and Reactivity w/lab
AS.030.103 (03)

This course is designed for students who have scored a 4 or 5 on the AP Chemistry Exam or who have scored a 6 or 7 HL IB Chemistry Exam. This course will review an advanced introductory chemistry sequence in a single semester. Chemical equilibrium, reactivity and bonding will be covered. These topics will be explored through laboratory experiments and problem solving, and discussing these principles in the context of current research. For details on chemistry placement and exam credit policies, please see http://www.advising.jhu.edu/placement_chemistry.php Students who have previously enrolled in AS.030.101 or AS.030.105 may not earn credit for AS.030.103 and students enrolled in AS.030.103 may not enroll in or receive credit for AS.030.102/AS.030.106.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Canceled
  • Seats Available: 8/8
  • PosTag(s): n/a

Applied Chemical Equilibrium and Reactivity w/lab
AS.030.103 (07)

This course is designed for students who have scored a 4 or 5 on the AP Chemistry Exam or who have scored a 6 or 7 HL IB Chemistry Exam. This course will review an advanced introductory chemistry sequence in a single semester. Chemical equilibrium, reactivity and bonding will be covered. These topics will be explored through laboratory experiments and problem solving, and discussing these principles in the context of current research. For details on chemistry placement and exam credit policies, please see http://www.advising.jhu.edu/placement_chemistry.php Students who have previously enrolled in AS.030.101 or AS.030.105 may not earn credit for AS.030.103 and students enrolled in AS.030.103 may not enroll in or receive credit for AS.030.102/AS.030.106.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/16
  • PosTag(s): n/a

Introductory Chemistry I
AS.030.101 (01)

An introduction to the fundamental principles of chemistry. The main topics to be covered are atomic and molecular structure at the level of dot structures and VSEPR geometries, the periodic table, stoichiometry and the balancing of chemical equations, the gas laws, the law of mass action and chemical equilibrium, acids and bases, and elementary chemical thermodynamics. Switching sections requires instructor's approval. Co-requisite: AS.030.105

  • Credits: 3.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/320
  • PosTag(s): n/a

Applied Chemical Equilibrium and Reactivity w/lab
AS.030.103 (01)

This course is designed for students who have scored a 4 or 5 on the AP Chemistry Exam or who have scored a 6 or 7 HL IB Chemistry Exam. This course will review an advanced introductory chemistry sequence in a single semester. Chemical equilibrium, reactivity and bonding will be covered. These topics will be explored through laboratory experiments and problem solving, and discussing these principles in the context of current research. For details on chemistry placement and exam credit policies, please see http://www.advising.jhu.edu/placement_chemistry.php Students who have previously enrolled in AS.030.101 or AS.030.105 may not earn credit for AS.030.103 and students enrolled in AS.030.103 may not enroll in or receive credit for AS.030.102/AS.030.106.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/16
  • PosTag(s): n/a

Introductory Chemistry I
AS.030.101 (02)

An introduction to the fundamental principles of chemistry. The main topics to be covered are atomic and molecular structure at the level of dot structures and VSEPR geometries, the periodic table, stoichiometry and the balancing of chemical equations, the gas laws, the law of mass action and chemical equilibrium, acids and bases, and elementary chemical thermodynamics. Switching sections requires instructor's approval. Co-requisite: AS.030.105

  • Credits: 3.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 7/308
  • PosTag(s): n/a

Applied Chemical Equilibrium and Reactivity w/lab
AS.030.103 (04)

This course is designed for students who have scored a 4 or 5 on the AP Chemistry Exam or who have scored a 6 or 7 HL IB Chemistry Exam. This course will review an advanced introductory chemistry sequence in a single semester. Chemical equilibrium, reactivity and bonding will be covered. These topics will be explored through laboratory experiments and problem solving, and discussing these principles in the context of current research. For details on chemistry placement and exam credit policies, please see http://www.advising.jhu.edu/placement_chemistry.php Students who have previously enrolled in AS.030.101 or AS.030.105 may not earn credit for AS.030.103 and students enrolled in AS.030.103 may not enroll in or receive credit for AS.030.102/AS.030.106.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/16
  • PosTag(s): n/a

Applied Chemical Equilibrium and Reactivity w/lab
AS.030.103 (06)

This course is designed for students who have scored a 4 or 5 on the AP Chemistry Exam or who have scored a 6 or 7 HL IB Chemistry Exam. This course will review an advanced introductory chemistry sequence in a single semester. Chemical equilibrium, reactivity and bonding will be covered. These topics will be explored through laboratory experiments and problem solving, and discussing these principles in the context of current research. For details on chemistry placement and exam credit policies, please see http://www.advising.jhu.edu/placement_chemistry.php Students who have previously enrolled in AS.030.101 or AS.030.105 may not earn credit for AS.030.103 and students enrolled in AS.030.103 may not enroll in or receive credit for AS.030.102/AS.030.106.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/16
  • PosTag(s): n/a

Applied Chemical Equilibrium and Reactivity w/lab
AS.030.103 (08)

This course is designed for students who have scored a 4 or 5 on the AP Chemistry Exam or who have scored a 6 or 7 HL IB Chemistry Exam. This course will review an advanced introductory chemistry sequence in a single semester. Chemical equilibrium, reactivity and bonding will be covered. These topics will be explored through laboratory experiments and problem solving, and discussing these principles in the context of current research. For details on chemistry placement and exam credit policies, please see http://www.advising.jhu.edu/placement_chemistry.php Students who have previously enrolled in AS.030.101 or AS.030.105 may not earn credit for AS.030.103 and students enrolled in AS.030.103 may not enroll in or receive credit for AS.030.102/AS.030.106.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Canceled
  • Seats Available: 8/8
  • PosTag(s): n/a

Applied Chemical Equilibrium and Reactivity w/lab
AS.030.103 (09)

This course is designed for students who have scored a 4 or 5 on the AP Chemistry Exam or who have scored a 6 or 7 HL IB Chemistry Exam. This course will review an advanced introductory chemistry sequence in a single semester. Chemical equilibrium, reactivity and bonding will be covered. These topics will be explored through laboratory experiments and problem solving, and discussing these principles in the context of current research. For details on chemistry placement and exam credit policies, please see http://www.advising.jhu.edu/placement_chemistry.php Students who have previously enrolled in AS.030.101 or AS.030.105 may not earn credit for AS.030.103 and students enrolled in AS.030.103 may not enroll in or receive credit for AS.030.102/AS.030.106.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/16
  • PosTag(s): n/a

Applied Chemical Equilibrium and Reactivity w/lab
AS.030.103 (10)

This course is designed for students who have scored a 4 or 5 on the AP Chemistry Exam or who have scored a 6 or 7 HL IB Chemistry Exam. This course will review an advanced introductory chemistry sequence in a single semester. Chemical equilibrium, reactivity and bonding will be covered. These topics will be explored through laboratory experiments and problem solving, and discussing these principles in the context of current research. For details on chemistry placement and exam credit policies, please see http://www.advising.jhu.edu/placement_chemistry.php Students who have previously enrolled in AS.030.101 or AS.030.105 may not earn credit for AS.030.103 and students enrolled in AS.030.103 may not enroll in or receive credit for AS.030.102/AS.030.106.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 6/15
  • PosTag(s): n/a

Introductory Organic Chemistry I
AS.030.205 (08)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/28
  • PosTag(s): n/a

Introductory Organic Chemistry I
AS.030.205 (09)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/28
  • PosTag(s): n/a

Physical Chemistry Instrumentation Laboratory I
AS.030.305 (01)

This course is designed to illustrate the principles of physical chemistry and to introduce the student to techniques and instruments used in modern chemical research. Chemistry majors are expected to take this sequence of courses, rather than AS.030.307. Chemistry majors only.

  • Credits: 3.00
  • Level: Upper Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/6
  • PosTag(s): n/a

Physical Chemistry I
AS.030.301 (01)

The laws of thermodynamics, their statistical foundation, and their application to chemical phenomena. Studends should have knowledge of general physics, general chemistry, and calculus (two semesters recommended). Freshmen by permission only.

  • Credits: 3.00
  • Level: Upper Level Undergraduate
  • Status: Open
  • Seats Available: 35/60
  • PosTag(s): n/a

Introductory Chemistry Laboratory I
AS.030.105 (05)

Laboratory work includes quantitative analysis and the measurement of physical properties. Open only to those who are registered for or have successfully completed Introductory Chemistry 030.101.

  • Credits: 1.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 35/100
  • PosTag(s): n/a

Introductory Chemistry Laboratory I
AS.030.105 (07)

Laboratory work includes quantitative analysis and the measurement of physical properties. Open only to those who are registered for or have successfully completed Introductory Chemistry 030.101.

  • Credits: 1.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/60
  • PosTag(s): n/a

Introductory Chemistry Lab I
AS.030.105 (03)

Laboratory work includes quantitative analysis and the measurement of physical properties. Open only to those who are registered for or have successfully completed Introductory Chemistry 030.101.

  • Credits: 1.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 10/100
  • PosTag(s): n/a

Introductory Chemistry Laboratory I
AS.030.105 (01)

Laboratory work includes quantitative analysis and the measurement of physical properties. Open only to those who are registered for or have successfully completed Introductory Chemistry 030.101.

  • Credits: 1.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 7/100
  • PosTag(s): n/a

Chemistry with Problem Solving I
AS.030.112 (01)

This course is for students who have had moderate or limited exposure to the subject. Special emphasis is placed on scientific problem-solving skills. There are two discussion sections per week, including one devoted exclusively to interactive quantitative problem solving. A typical student may have taken a year of descriptive chemistry as a high school sophomore, but has not been exposed to the problem-solving mathematical approach used in university-level science courses. Taken concurrently with AS.030.101 and AS.030.102.

  • Credits: 0.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 15/24
  • PosTag(s): n/a

Introductory Chemistry Laboratory I
AS.030.105 (02)

Laboratory work includes quantitative analysis and the measurement of physical properties. Open only to those who are registered for or have successfully completed Introductory Chemistry 030.101.

  • Credits: 1.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 2/100
  • PosTag(s): n/a

Introductory Chemistry Laboratory I
AS.030.105 (04)

Laboratory work includes quantitative analysis and the measurement of physical properties. Open only to those who are registered for or have successfully completed Introductory Chemistry 030.101.

  • Credits: 1.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 9/83
  • PosTag(s): n/a

Introductory Chemistry Laboratory I
AS.030.105 (06)

Laboratory work includes quantitative analysis and the measurement of physical properties. Open only to those who are registered for or have successfully completed Introductory Chemistry 030.101.

  • Credits: 1.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 1/63
  • PosTag(s): n/a

Introductory Organic Chemistry I
AS.030.205 (07)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/28
  • PosTag(s): n/a

The Science of Color
AS.030.118 (02)

This course is designed to introduce students to the fundamental physical and chemical origins of color and how we perceive them - from the vivid palette provided by the natural world to the brightly colored clothing we wear. Beginning with the basic principles of light and color, we will embark on an interdisciplinary investigation of color, including, but not limited to: color chemistry; color in biology; the physiology of the eye; how color affects human psychology; the history of color and light; and the use of color in art. Discover the physical and chemical explanations behind several noteworthy phenomena such as sunsets, color-blindness, rainbows, fireworks, chameleons and the Aurora Borealis.

  • Credits: 3.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/18
  • PosTag(s): n/a

Introductory Organic Chemistry I
AS.030.205 (04)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/28
  • PosTag(s): n/a

Introductory Organic Chemistry I
AS.030.205 (03)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 3/60
  • PosTag(s): n/a

Chemistry with Problem Solving I
AS.030.112 (02)

This course is for students who have had moderate or limited exposure to the subject. Special emphasis is placed on scientific problem-solving skills. There are two discussion sections per week, including one devoted exclusively to interactive quantitative problem solving. A typical student may have taken a year of descriptive chemistry as a high school sophomore, but has not been exposed to the problem-solving mathematical approach used in university-level science courses. Taken concurrently with AS.030.101 and AS.030.102.

  • Credits: 0.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 10/24
  • PosTag(s): n/a

Introductory Organic Chemistry I
AS.030.205 (01)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/29
  • PosTag(s): n/a

Introductory Organic Chemistry I
AS.030.205 (05)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/28
  • PosTag(s): n/a

Introductory Organic Chemistry I
AS.030.205 (02)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 3/30
  • PosTag(s): n/a

The Science of Color
AS.030.118 (01)

This course is designed to introduce students to the fundamental physical and chemical origins of color and how we perceive them - from the vivid palette provided by the natural world to the brightly colored clothing we wear. Beginning with the basic principles of light and color, we will embark on an interdisciplinary investigation of color, including, but not limited to: color chemistry; color in biology; the physiology of the eye; how color affects human psychology; the history of color and light; and the use of color in art. Discover the physical and chemical explanations behind several noteworthy phenomena such as sunsets, color-blindness, rainbows, fireworks, chameleons and the Aurora Borealis.

  • Credits: 3.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 1/18
  • PosTag(s): n/a

Introductory Organic Chemistry I
AS.030.205 (06)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/28
  • PosTag(s): n/a

Introductory Organic Chemistry I
AS.030.205 (14)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 7/26
  • PosTag(s): n/a

Introductory Organic Chemistry I
AS.030.205 (10)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/28
  • PosTag(s): n/a

Introductory Organic Chemistry I
AS.030.205 (17)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/29
  • PosTag(s): n/a

Introductory Organic Chemistry I
AS.030.205 (12)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 13/30
  • PosTag(s): n/a

Introductory Organic Chemistry Laboratory
AS.030.225 (01)

Laboratory work includes fundamental laboratory techniques and preparation of representative organic compounds. Open only to those who are registered for or have completed Introductory Organic Chemistry. Note: This one-semester course is offered each term. Introductory Organic Chemistry I/II requires one semester of the laboratory.

  • Credits: 3.00
  • Level: Lower Level Undergraduate
  • Status: Closed
  • Seats Available: 1/60
  • PosTag(s): CHBE-ACBE

Introductory Organic Chemistry Laboratory
AS.030.225 (05)

Laboratory work includes fundamental laboratory techniques and preparation of representative organic compounds. Open only to those who are registered for or have completed Introductory Organic Chemistry. Note: This one-semester course is offered each term. Introductory Organic Chemistry I/II requires one semester of the laboratory.

  • Credits: 3.00
  • Level: Lower Level Undergraduate
  • Status: Closed
  • Seats Available: 5/60
  • PosTag(s): CHBE-ACBE

Introductory Organic Chemistry I
AS.030.205 (13)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 9/30
  • PosTag(s): n/a

Introductory Organic Chemistry I
AS.030.205 (16)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/29
  • PosTag(s): n/a

Introductory Organic Chemistry I
AS.030.205 (19)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/29
  • PosTag(s): n/a

Introductory Organic Chemistry I
AS.030.205 (20)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/29
  • PosTag(s): n/a

Introductory Organic Chemistry Laboratory
AS.030.225 (04)

Laboratory work includes fundamental laboratory techniques and preparation of representative organic compounds. Open only to those who are registered for or have completed Introductory Organic Chemistry. Note: This one-semester course is offered each term. Introductory Organic Chemistry I/II requires one semester of the laboratory.

  • Credits: 3.00
  • Level: Lower Level Undergraduate
  • Status: Closed
  • Seats Available: 2/60
  • PosTag(s): CHBE-ACBE

Introductory Organic Chemistry Laboratory
AS.030.225 (03)

Laboratory work includes fundamental laboratory techniques and preparation of representative organic compounds. Open only to those who are registered for or have completed Introductory Organic Chemistry. Note: This one-semester course is offered each term. Introductory Organic Chemistry I/II requires one semester of the laboratory.

  • Credits: 3.00
  • Level: Lower Level Undergraduate
  • Status: Closed
  • Seats Available: 2/60
  • PosTag(s): CHBE-ACBE

Introductory Organic Chemistry I
AS.030.205 (11)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 13/30
  • PosTag(s): n/a

Introductory Organic Chemistry I
AS.030.205 (15)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Open
  • Seats Available: 14/30
  • PosTag(s): n/a

Chemical Chirality: An Introduction in Organic Chem. Lab, Techniques
AS.030.227 (01)

This is a project lab designed for Chemistry Majors who are concurrently enrolled in AS.030.205. Techniques for the organic chemistry laboratory including methods of purification, isolation, synthesis, and analysis will be explored through a project focused on chemical chirality. Students may not simultaneously enroll for AS.030.225 and AS.030.227.

  • Credits: 3.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/14
  • PosTag(s): n/a

Introductory Organic Chemistry I
AS.030.205 (18)

The fundamental chemistry of the compounds of carbon. Methods of structure determination and synthesis. The mechanisms of typical organic reactions and the relations between physical and chemical properties and structures.

  • Credits: 4.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/29
  • PosTag(s): n/a

Chemical Chirality: An Introduction in Organic Chem. Lab, Techniques
AS.030.227 (02)

This is a project lab designed for Chemistry Majors who are concurrently enrolled in AS.030.205. Techniques for the organic chemistry laboratory including methods of purification, isolation, synthesis, and analysis will be explored through a project focused on chemical chirality. Students may not simultaneously enroll for AS.030.225 and AS.030.227.

  • Credits: 3.00
  • Level: Lower Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/14
  • PosTag(s): n/a

Introductory Organic Chemistry Laboratory
AS.030.225 (02)

Laboratory work includes fundamental laboratory techniques and preparation of representative organic compounds. Open only to those who are registered for or have completed Introductory Organic Chemistry. Note: This one-semester course is offered each term. Introductory Organic Chemistry I/II requires one semester of the laboratory.

  • Credits: 3.00
  • Level: Lower Level Undergraduate
  • Status: Closed
  • Seats Available: 3/60
  • PosTag(s): CHBE-ACBE

Physical Chemistry Instrumentation Laboratory I
AS.030.305 (05)

This course is designed to illustrate the principles of physical chemistry and to introduce the student to techniques and instruments used in modern chemical research. Chemistry majors are expected to take this sequence of courses, rather than AS.030.307. Chemistry majors only.

  • Credits: 3.00
  • Level: Upper Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/6
  • PosTag(s): n/a

Intermediate Quantum Chemistry
AS.030.453 (01)

The principles of quantum mechanics are developed and applied to chemical problems.

  • Credits: 3.00
  • Level: Upper Level Undergraduate
  • Status: Open
  • Seats Available: 12/19
  • PosTag(s): n/a

Biophysical Chemistry
AS.250.372 (01)

Course covers classical and statistical thermodynamics, spanning from simple to complex systems. Major topics include the first and second law, gases, liquids, chemical mixtures and reactions, conformational transitions in peptides and proteins, ligand binding, and allostery. Methods for thermodynamic analysis will be discussed, including calorimetry and spectroscopy. Students will develop and apply different thermodynamic potentials, learn about different types of ensembles and partition functions. Students will learn to use Mathematica and will use it for data fitting and for statistical and mathematical analysis. Background: Calculus, Organic Chemistry, and Introductory Physics.

  • Credits: 4.00
  • Level: Upper Level Undergraduate
  • Status: Open
  • Seats Available: 5/35
  • PosTag(s): BIOL-UL

Biochemistry I
AS.250.315 (01)

Foundation for advanced classes in Biophysics and other quantitative biological disciplines. Lecture and computer laboratory. This class is the first semester of a two semester course in biochemistry. Topics in Biochemistry I include chemical and physical properties of biomolecules and energetic principles of catabolic pathways. Computer labs include extensive use of molecular graphics and modelling of reaction kinetics and pathway flux. Co-listed with AS.030.315

  • Credits: 4.00
  • Level: Upper Level Undergraduate
  • Status: Open
  • Seats Available: 3/34
  • PosTag(s): n/a

Biophysical Chemistry
AS.030.370 (01)

Course provides working understanding of physical chemistry of the cell, emphasizing problem solving. Topics include classical and statistical thermodynamics, thermodynamics of proteins and nucleic acids, protein folding, calorimetry, ligand binding thermodynamics, linkage, cooperativity and anticooperativity, allosteric models, lattice statistics, helix-coil transition, and polymer theory. When appropriate, students visit the laboratory to set up data collection and learn to analyze the resulting data computationally, using nonlinear least-squares methods.

  • Credits: 4.00
  • Level: Upper Level Undergraduate
  • Status: Canceled
  • Seats Available: 10/10
  • PosTag(s): BIOL-UL

Optoelectronic Materials and Devices: Synthesis, Spectroscopy, and Applications
AS.030.403 (01)

This course provides an introduction to the vast chemistry and physics of solid-state materials. The course begins with a fundamental description of bonding in crystalline solids and calculation of electronic band structure. We then extend our discussion to methods for the synthesis of low-dimensional materials and hierarchical structures, including quantum dots (0D), nanowires (1D), graphene and graphene analogs (2D), and thin-film superlattices. An in-depth discussion of spectroscopic and characterization techniques for solid-state materials will follow and focus on some of the foundational studies of quantum devices and cooperative phenomena. At this stage we will describe recent advances in electron-microscopy (e.g. aberration-corrected and energy filtered TEM, atom-probe tomography) that are revolutionizing the structural, compositional, and electronic characterization of materials. The course will conclude with a survey of contemporary topics in solid-state and nanomaterials science, including functional devices and circuits, assembly, energy conversion and catalysis, and biological sensing. Recommended Course Background: AS.030.301 and AS.030.402 are preferred, but instructor approval may be granted in lieu of these courses.

  • Credits: 3.00
  • Level: Upper Level Undergraduate
  • Status: Open
  • Seats Available: 4/24
  • PosTag(s): n/a

Electrochemical Systems for Energy Conversion and Storage
AS.030.404 (01)

This course will be focused on the fundamentals and applications of electrochemical methods in catalysis, charge transport, and energy conversion and storage. Topics that will be covered are basic electrochemical techniques, homogenous and heterogeneous (photo)electrocatalysis, fuel cells, and charge storage devices. The class will conclude with a group report and presentation on a recent development in the field of energy catalysis, conversion, and storage. Course topics include: 1) Fundamentals of electrochemistry, 2) Potential sweep methods and current-controlled techniques, 3) Impedance analysis, 4) Electrochemistry coupled with other characterization methods, 5) Electrocatalysis and photoelectrochemical catalysis, 6) Basics in fuel cells and current technologies (alkaline, polymer exchange membrane, solid oxide…), 7) Basics in batteries and current technologies (Pb acid, Li-based, other metals…) Recommended Course Background: AS.030.204 or AS.030.449 or AS.030.472, or instructor approval for undergraduate students. No pre-requisites for graduate students

  • Credits: 3.00
  • Level: Upper Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/20
  • PosTag(s): n/a

Advanced Inorganic Lab
AS.030.356 (02)

Laboratory designed to illustrate the principles and practice of inorganic chemistry through the synthesis and characterization of transition metal and organometallic compounds. Methods used include vacuum and inert atmosphere techniques. Instrumental approaches and modern spectroscopic techniques are applied to the characterization of compounds generated. It is strongly recommended that students have taken or are taking one of the following courses: AS.030.204, AS.030.442, AS.030.449, or AS.030.472.

  • Credits: 3.00
  • Level: Upper Level Undergraduate
  • Status: Open
  • Seats Available: 1/12
  • PosTag(s): CHBE-ACBE

Biophysical Chemistry
AS.250.372 (02)

Course covers classical and statistical thermodynamics, spanning from simple to complex systems. Major topics include the first and second law, gases, liquids, chemical mixtures and reactions, conformational transitions in peptides and proteins, ligand binding, and allostery. Methods for thermodynamic analysis will be discussed, including calorimetry and spectroscopy. Students will develop and apply different thermodynamic potentials, learn about different types of ensembles and partition functions. Students will learn to use Mathematica and will use it for data fitting and for statistical and mathematical analysis. Background: Calculus, Organic Chemistry, and Introductory Physics.

  • Credits: 4.00
  • Level: Upper Level Undergraduate
  • Status: Open
  • Seats Available: 17/25
  • PosTag(s): BIOL-UL

Advanced Inorganic Lab
AS.030.356 (01)

Laboratory designed to illustrate the principles and practice of inorganic chemistry through the synthesis and characterization of transition metal and organometallic compounds. Methods used include vacuum and inert atmosphere techniques. Instrumental approaches and modern spectroscopic techniques are applied to the characterization of compounds generated. It is strongly recommended that students have taken or are taking one of the following courses: AS.030.204, AS.030.442, AS.030.449, or AS.030.472.

  • Credits: 3.00
  • Level: Upper Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/12
  • PosTag(s): CHBE-ACBE

Chemistry of Inorganic Compounds
AS.030.449 (01)

Physical and chemical properties of inorganic, coordination and organometallic compounds are discussed in terms of molecular orbital, ligand field and crystal field theories. Emphasis on structure and reactivity of these inorganic compounds. Other topics: magnetic properties, electronic spectra, magnetic resonance spectra, reaction kinetics.

  • Credits: 3.00
  • Level: Upper Level Undergraduate
  • Status: Open
  • Seats Available: 26/35
  • PosTag(s): CHBE-ACBE

Physical Chemistry Instrumentation Laboratory I
AS.030.305 (02)

This course is designed to illustrate the principles of physical chemistry and to introduce the student to techniques and instruments used in modern chemical research. Chemistry majors are expected to take this sequence of courses, rather than AS.030.307. Chemistry majors only.

  • Credits: 3.00
  • Level: Upper Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/6
  • PosTag(s): n/a

Physical Chemistry Instrumentation Laboratory I
AS.030.305 (03)

This course is designed to illustrate the principles of physical chemistry and to introduce the student to techniques and instruments used in modern chemical research. Chemistry majors are expected to take this sequence of courses, rather than AS.030.307. Chemistry majors only.

  • Credits: 3.00
  • Level: Upper Level Undergraduate
  • Status: Waitlist Only
  • Seats Available: 0/6
  • PosTag(s): n/a

Physical Chemistry Instrumentation Laboratory I
AS.030.305 (04)

This course is designed to illustrate the principles of physical chemistry and to introduce the student to techniques and instruments used in modern chemical research. Chemistry majors are expected to take this sequence of courses, rather than AS.030.307. Chemistry majors only.

  • Credits: 3.00
  • Level: Upper Level Undergraduate
  • Status: Open
  • Seats Available: 2/6
  • PosTag(s): n/a

Physical Chemistry Instrumentation Laboratory I
AS.030.305 (06)

This course is designed to illustrate the principles of physical chemistry and to introduce the student to techniques and instruments used in modern chemical research. Chemistry majors are expected to take this sequence of courses, rather than AS.030.307. Chemistry majors only.

  • Credits: 3.00
  • Level: Upper Level Undergraduate
  • Status: Open
  • Seats Available: 1/6
  • PosTag(s): n/a

Biochemistry I
AS.030.315 (01)

Foundation for advanced classes in Biophysics and other quantitative biological disciplines. Lecture and computer laboratory. This class is the first semester of a two semester course in biochemistry. Topics in Biochemistry I include chemical and physical properties of biomolecules and energetic principles of catabolic pathways. Computer labs include extensive use of molecular graphics and modelling of reaction kinetics and pathway flux. Co-listed with AS.250.315

  • Credits: 4.00
  • Level: Upper Level Undergraduate
  • Status: Open
  • Seats Available: 2/12
  • PosTag(s): n/a

Course # (Section) Title Day/Times Instructor Room PosTag(s) Info
AS.030.103 (05)Applied Chemical Equilibrium and Reactivity w/labF 9:00AM - 9:50AM, MW 9:00AM - 9:50AM, T 9:00AM - 12:00PMMcqueen, TyrelBloomberg 478
AS.030.103 (02)Applied Chemical Equilibrium and Reactivity w/labF 9:00AM - 9:50AM, MW 9:00AM - 9:50AM, T 1:30PM - 5:00PMMcqueen, TyrelBloomberg 478
AS.030.103 (03)Applied Chemical Equilibrium and Reactivity w/labF 9:00AM - 9:50AM, MW 9:00AM - 9:50AM, W 1:30PM - 5:00PMMcqueen, TyrelBloomberg 478
AS.030.103 (07)Applied Chemical Equilibrium and Reactivity w/labF 10:00AM - 10:50AM, MW 10:00AM - 10:50AM, T 1:30PM - 5:00PMMcqueen, TyrelBloomberg 478
AS.030.101 (01)Introductory Chemistry IMWF 9:00AM - 9:50AMGoldberg, David PRemsen Hall 1
AS.030.103 (01)Applied Chemical Equilibrium and Reactivity w/labF 9:00AM - 9:50AM, MW 9:00AM - 9:50AM, M 1:30PM - 5:00PMMcqueen, TyrelBloomberg 478
AS.030.101 (02)Introductory Chemistry IMWF 10:00AM - 10:50AMTolman, Joel RRemsen Hall 1
AS.030.103 (04)Applied Chemical Equilibrium and Reactivity w/labF 9:00AM - 9:50AM, MW 9:00AM - 9:50AM, Th 1:30PM - 5:00PMMcqueen, TyrelBloomberg 478
AS.030.103 (06)Applied Chemical Equilibrium and Reactivity w/labF 10:00AM - 10:50AM, MW 10:00AM - 10:50AM, M 1:30PM - 5:00PMMcqueen, TyrelBloomberg 478
AS.030.103 (08)Applied Chemical Equilibrium and Reactivity w/labF 10:00AM - 10:50AM, MW 10:00AM - 10:50AM, W 1:30PM - 5:00PMMcqueen, TyrelBloomberg 478
AS.030.103 (09)Applied Chemical Equilibrium and Reactivity w/labF 10:00AM - 10:50AM, MW 10:00AM - 10:50AM, Th 1:30PM - 5:00PMMcqueen, TyrelBloomberg 478
AS.030.103 (10)Applied Chemical Equilibrium and Reactivity w/labF 10:00AM - 10:50AM, MW 10:00AM - 10:50AM, T 9:00AM - 12:00PMMcqueen, TyrelBloomberg 478
AS.030.205 (08)Introductory Organic Chemistry IMWF 9:00AM - 9:50AM, Th 9:00AM - 10:20AMGreenberg, MarcMudd 26
AS.030.205 (09)Introductory Organic Chemistry IMWF 9:00AM - 9:50AM, Th 9:00AM - 10:20AMGreenberg, MarcMudd 26
AS.030.305 (01)Physical Chemistry Instrumentation Laboratory IM 1:30PM - 2:20PM, M 2:30PM - 6:30PMBragg, Arthur E, Fairbrother, D HowardRemsen Hall 300
AS.030.301 (01)Physical Chemistry ITTh 10:30AM - 11:45AMHernandez, RigobertoGilman 132
AS.030.105 (05)Introductory Chemistry Laboratory IF 1:30PM - 4:20PMThyagarajan, Sunita, Young, JamieUG Teaching Lab (UTL) 296
AS.030.105 (07)Introductory Chemistry Laboratory IT 9:00AM - 11:50AMThyagarajan, SunitaUG Teaching Lab (UTL) 296
AS.030.105 (03)Introductory Chemistry Lab IW 1:30PM - 4:20PMThyagarajan, Sunita, Young, JamieUG Teaching Lab (UTL) 296
AS.030.105 (01)Introductory Chemistry Laboratory IM 1:30PM - 4:20PMThyagarajan, SunitaUG Teaching Lab (UTL) 296
AS.030.112 (01)Chemistry with Problem Solving ITTh 1:30PM - 2:30PMGittens, AlexandraRemsen Hall 233
AS.030.105 (02)Introductory Chemistry Laboratory IT 1:30PM - 4:20PMThyagarajan, SunitaUG Teaching Lab (UTL) 296
AS.030.105 (04)Introductory Chemistry Laboratory ITh 1:30PM - 4:20PMThyagarajan, SunitaUG Teaching Lab (UTL) 296
AS.030.105 (06)Introductory Chemistry Laboratory ITh 9:00AM - 11:50AMThyagarajan, SunitaUG Teaching Lab (UTL) 296
AS.030.205 (07)Introductory Organic Chemistry IMWF 9:00AM - 9:50AM, Th 9:00AM - 10:20AMGreenberg, MarcMudd 26
AS.030.118 (02)The Science of ColorMWF 11:00AM - 11:50AMYoung, JamieRemsen Hall 233
AS.030.205 (04)Introductory Organic Chemistry IMWF 9:00AM - 9:50AM, Th 9:00AM - 10:20AMGreenberg, MarcMudd 26
AS.030.205 (03)Introductory Organic Chemistry IMWF 9:00AM - 9:50AM, Th 9:00AM - 10:20AMFalzone, ChristopherShaffer 3
AS.030.112 (02)Chemistry with Problem Solving ITTh 1:30PM - 2:30PMHarris, Rachel MarieRemsen Hall 140
AS.030.205 (01)Introductory Organic Chemistry IMWF 9:00AM - 9:50AM, Th 9:00AM - 10:20AMGreenberg, MarcMudd 26
AS.030.205 (05)Introductory Organic Chemistry IMWF 9:00AM - 9:50AM, Th 9:00AM - 10:20AMGreenberg, MarcMudd 26
AS.030.205 (02)Introductory Organic Chemistry IMWF 10:00AM - 10:50AM, Th 9:00AM - 10:20AMTownsend, Craig ABloomberg 272
AS.030.118 (01)The Science of ColorMWF 10:00AM - 10:50AMYoung, JamieRemsen Hall 233
AS.030.205 (06)Introductory Organic Chemistry IMWF 9:00AM - 9:50AM, Th 9:00AM - 10:20AMGreenberg, MarcMudd 26
AS.030.205 (14)Introductory Organic Chemistry IMWF 10:00AM - 10:50AM, Th 9:00AM - 10:20AMTownsend, Craig ABloomberg 272
AS.030.205 (10)Introductory Organic Chemistry IMWF 9:00AM - 9:50AM, Th 9:00AM - 10:20AMGreenberg, MarcMudd 26
AS.030.205 (17)Introductory Organic Chemistry IMWF 9:00AM - 9:50AM, Th 9:00AM - 10:20AMFalzone, ChristopherShaffer 3
AS.030.205 (12)Introductory Organic Chemistry IMWF 10:00AM - 10:50AM, Th 9:00AM - 10:20AMTownsend, Craig ABloomberg 272
AS.030.225 (01)Introductory Organic Chemistry LaboratoryT 9:00AM - 10:20AM, M 1:30PM - 6:30PMD'Souza, Larissa NHodson 110CHBE-ACBE
AS.030.225 (05)Introductory Organic Chemistry LaboratoryT 9:00AM - 10:20AM, F 1:30PM - 6:30PMD'Souza, Larissa NHodson 110CHBE-ACBE
AS.030.205 (13)Introductory Organic Chemistry IMWF 10:00AM - 10:50AM, Th 9:00AM - 10:20AMTownsend, Craig ABloomberg 272
AS.030.205 (16)Introductory Organic Chemistry IMWF 9:00AM - 9:50AM, Th 9:00AM - 10:20AMFalzone, ChristopherShaffer 3
AS.030.205 (19)Introductory Organic Chemistry IMWF 9:00AM - 9:50AM, Th 9:00AM - 10:20AMFalzone, ChristopherShaffer 3
AS.030.205 (20)Introductory Organic Chemistry IMWF 9:00AM - 9:50AM, Th 9:00AM - 10:20AMFalzone, ChristopherShaffer 3
AS.030.225 (04)Introductory Organic Chemistry LaboratoryT 9:00AM - 10:20AM, Th 12:30PM - 5:30PMD'Souza, Larissa NHodson 110CHBE-ACBE
AS.030.225 (03)Introductory Organic Chemistry LaboratoryT 9:00AM - 10:20AM, W 1:30PM - 6:30PMD'Souza, Larissa NHodson 110CHBE-ACBE
AS.030.205 (11)Introductory Organic Chemistry IMWF 10:00AM - 10:50AM, Th 9:00AM - 10:20AMTownsend, Craig ABloomberg 272
AS.030.205 (15)Introductory Organic Chemistry IMWF 10:00AM - 10:50AM, Th 9:00AM - 10:20AMTownsend, Craig ABloomberg 272
AS.030.227 (01)Chemical Chirality: An Introduction in Organic Chem. Lab, TechniquesT 9:00AM - 10:20AM, W 1:30PM - 6:30PMHill, EricRemsen Hall 233
AS.030.205 (18)Introductory Organic Chemistry IMWF 9:00AM - 9:50AM, Th 9:00AM - 10:20AMFalzone, ChristopherShaffer 3
AS.030.227 (02)Chemical Chirality: An Introduction in Organic Chem. Lab, TechniquesT 9:00AM - 10:20AM, F 1:30PM - 6:30PMHill, EricRemsen Hall 233
AS.030.225 (02)Introductory Organic Chemistry LaboratoryT 9:00AM - 10:20AM, T 12:30PM - 5:30PMD'Souza, Larissa NHodson 110CHBE-ACBE
AS.030.305 (05)Physical Chemistry Instrumentation Laboratory IT 1:30PM - 2:20PM, T 2:30PM - 6:30PMBragg, Arthur E, Fairbrother, D HowardRemsen Hall 300
AS.030.453 (01)Intermediate Quantum ChemistryMWF 11:00AM - 11:50AMCheng, LanRemsen Hall 347
AS.250.372 (01)Biophysical ChemistryMWF 10:00AM - 10:50AM, F 12:00PM - 12:50PMBarrick, DougAmes 234BIOL-UL
AS.250.315 (01)Biochemistry ITTh 12:00PM - 12:50PM, MW 12:00PM - 12:50PMFleming, PatrickRemsen Hall 1
AS.030.370 (01)Biophysical ChemistryMWF 10:00AM - 10:50AM, F 12:00PM - 12:50PMBarrick, DougRemsen Hall 233BIOL-UL
AS.030.403 (01)Optoelectronic Materials and Devices: Synthesis, Spectroscopy, and ApplicationsTTh 9:00AM - 10:15AMKempa, ThomasRemsen Hall 140
AS.030.404 (01)Electrochemical Systems for Energy Conversion and StorageTTh 12:00PM - 1:15PMThoi, Van SaraRemsen Hall 300
AS.030.356 (02)Advanced Inorganic LabM 11:00AM - 11:50AM, F 1:30PM - 6:30PMHill, EricRemsen Hall 140CHBE-ACBE
AS.250.372 (02)Biophysical ChemistryMWF 10:00AM - 10:50AM, F 2:00PM - 2:50PMBarrick, DougAmes 234BIOL-UL
AS.030.356 (01)Advanced Inorganic LabM 11:00AM - 11:50AM, W 1:30PM - 6:30PMHill, EricRemsen Hall 140CHBE-ACBE
AS.030.449 (01)Chemistry of Inorganic CompoundsMW 12:00PM - 1:15PMKarlin, Kenneth DBloomberg 274CHBE-ACBE
AS.030.305 (02)Physical Chemistry Instrumentation Laboratory IM 1:30PM - 2:20PM, T 2:30PM - 6:30PMBragg, Arthur E, Fairbrother, D HowardRemsen Hall 300
AS.030.305 (03)Physical Chemistry Instrumentation Laboratory IM 1:30PM - 2:20PM, W 2:30PM - 6:30PMBragg, Arthur E, Fairbrother, D HowardRemsen Hall 300
AS.030.305 (04)Physical Chemistry Instrumentation Laboratory IT 1:30PM - 2:20PM, M 2:30PM - 6:30PMBragg, Arthur E, Fairbrother, D HowardRemsen Hall 300
AS.030.305 (06)Physical Chemistry Instrumentation Laboratory IT 1:30PM - 2:20PM, W 2:30PM - 6:30PMBragg, Arthur E, Fairbrother, D HowardRemsen Hall 300
AS.030.315 (01)Biochemistry ITTh 12:00PM - 12:50PM, MW 12:00PM - 12:50PMFleming, PatrickRemsen Hall 1