Units: 1A laboratory designed to support and illustrate chemical concepts studied in CHEM 160, as well as to introduce quantitative laboratory techniques and encourage analytical thinking. Not intended for Chemistry and Biochemistry majors, who should take CHEM 275. May not be taken for credit by students who received credit for CHEM 250L.Enrollment Requirements:CHEM 150 and CHEM 150L with a minimum grade of C (2.0).