(1 3-hr Lab) Laboratory experiments illustrating chemical principles involving advanced techniques and modern instrumentation. A-F only. Students who successfully completed 161L or 171L with a grade of C or better will not be allowed to enroll in 181L without instructor override. Students who successfully complete 181L with a grade of C or better will not be allowed to enroll in 161L or 171L without instructor override. Corequisite: 181A.