CHEM 20L

General Chemistry Laboratory

Chemistry and Biochemistry · 3 units · Undergraduate lower division (0-99)

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Use of balance, volumetric techniques, volumetric and potentiometric analysis; Beer’s law, applications for environmental analysis and materials science.

P/NP or letter grading.

When it runs

Winter 2026
Spring 2026
Summer 2026
Winter 2027
Spring 2027

Scheduled, not typical — from UCLA’s Schedule of Classes, which publishes Fall 2025 through Spring 2027 and nothing before it.

Checking the Schedule of Classes…

Requisites

Official UCLA wording
Enforced requisite: course 14A or 20A with grade of C– or better. Enforced corequisite: course 14B or 20B.

BruinTree reads · Prerequisite

confidence 1.00 · from text

grade C- or better in

one of
- CHEM 14A
- CHEM 20A

BruinTree reads · Corequisite

confidence 1.00 · from text

one of

Requires

Everything that has to come before this course, not just the courses named in the requisite above.

CHEM 20L

CHEM 14AGeneral Chemistry for Life Scientists I
- LIFESCI 30AMathematics for Life Scientists
- MATH 3ACalculus for Life Sciences Students
  - MATH 1Precalculusanother path to it
- MATH 31ADifferential and Integral Calculusanother path to it

Unlocks

What this course is a requisite for, and what those courses lead to in turn.

CHEM 20L6 more beyond

CHEM 14CLGeneral and Organic Chemistry Laboratory II
- CHEM 192AUndergraduate Practicum in Chemistry and Biochemistryanother path to it
- CHEM 192BUndergraduate Practicum in Chemistry and Biochemistryanother path to it
CHEM 30ALGeneral Chemistry Laboratory II1 more beyond