Pang is super chill. He's very nice and a super clear and concise teacher. The class is a lot more work than I had anticipated (probably about 8 hours a week outside of class) and graded on accuracy to significant digits. This was a challenge for me as it wasn't something I was used to, but Pang was very fair. The labs are really easy, usually over in 45 minutes, and just a worksheet that wasn't graded. The grade breakdown is 69% hw, participation, and lab reports, 5% writing assignment (easy easy and could get extra credit if you got >16/20), 12% midterm, and 14% final. I would suggest finding someone to check your VLRs and HWs with. This is super helpful in making sure you understand concepts correctly and are getting the same sigfigs. Definitely helped me make sure I understood things well. Other than that, Pang is very clear and helped bc I was overlapping with 20B, kind, and fair. He's not very helpful with late submissions, but if you have a nice TA, they'll give you full credit for late work. But take Pang anyway he's a g.

Excellent professor and very nice, I would love to meet him in person. Workload was light and fairly lenient (one homework per week which consisted of about 3/4 page of writing, and one-ish lab per week which consisted of several (5-6?) pages each, mostly easy algebra but some conceptual bits too, nothing too complex; also one "writing assignment" which was only about 300 words and mostly conceptual).
Lectures came in the form of a powerpoint with his voice recorded over it (ie download the ppt and click a speaker icon to hear), which I initially hated but now I'm neutral on.
The class is probably more work when in person because we basically didn't have to do the actual experiments; a TA did the experiments and recorded the relevant bits, and we would take the data from the video. He recommends you use excel instead of google drive/google sheets for the labs and I agree with him on that but can't really give a reason why I like it better. The school does provide free access to ms office BTW.
Absolutely would take his class again.

this man a goat. best guy. take his class he awesome

Nothing compares to this class and Prof. Pang. The class is super direct, straightforward, and easy. The labs all come with thorough instructions so you know exactly what the TAs/professor wants. My TA Ruoxi was very nice and our discussion sections were around 40 min. There are tons of office hours and both my TA and Professor Pang responded to emails pretty fast.

Best Chemistry Professor at UCLA

Professor Pang has organized this course so well that is is so easy to stay on top of assignments, and even get far ahead. Personally, I really enjoyed the structure of the course because although there is always an assignment or two to be working on, they are not difficult at all. There are also so many different office hours that you can go to if you need clarification. Professor Pang and all the TAs are very encouraging and you can tell they really want us to succeed. Overall, the course was very well organized, the assignments were easy, and the professor and TAs are very helpful. All you need to do is make sure that you are on top of things and you are pretty much set for an A in this class. I would definitely recommend taking the class with Professor Pang and I would totally take another class with him in the future!

This class was literally the one class that I did not have to worry about my grade in because it was so easy and chill. Professor Pang is the best and really cared for his students. The workload is pretty light with only a homework assignment and lab report due every week. For our grade, there were 4 categories: participation/hw/lab reports, Writing assignment, midterm quiz, and the final quiz.

Participation/HW/Lab Reports: This category was the largest percentage of our grade and it included participation, which was for going to your lab workshops, the homework assignments, and the lab reports. The homeworks are pretty straightforward and simple and could be done in a day to be honest. The lab reports were not that bad either but some did take longer than others (any report that required Excel took a bit longer to complete because of graphing). Both of them were related to the lecture content for that week. Professor would post Powerpoint presentations with voiceovers for the lectures so it was asynchronous. Grading really depended on your TA and mine was pretty chill with grading so I scored pretty high on all of them. If a lab report is due on the day of a chem 20B midterm, he would postpone the due date for the lab report to the next week usually which was really nice of him.

Writing Assignment: I think this was like 5% of our grade so it really was not the biggest deal. Basically, he gives you a topic to write a short essay on (ours was about pulse oximeters) and he gives extra credit for this assignment. The worst part of this assignment was honestly just reading the article needed. Once you read it, it was pretty easy to complete.

Midterm Quiz: He gave us 24 hours to complete the midterm. It went over topics from week 1 up until that week and was straightforward. If you have been doing the homeworks and lab reports then the midterm should be fine for you.

Final quiz: Same as the midterm quiz and was cumulative. Again, if you have been paying attention in class then there is no reason not to do well on it.

Professor Pang taught this class very well and I cannot wait to have him again in the future! You will not regret taking this class!

Dr. Pang is an extremely accommodating professor and made 20L enjoyable (or as enjoyable as an online chem lab course can be). He always responded to my emails very quickly, and even pushed back due dates around 20B exams. The work itself isn't difficult, just can be time consuming based on how long the lab report is each week. If you start early, though, the class is very manageable.

He's an absolutely amazing professor who's super kind and caring. He was always extremely helpful during office hours and has a very fair grading scheme, with almost 70% of your grade consisting of homework and the rest consisting of two exams and a writing assignment. The writing assignment was time consuming but simple, and he gave extra credit on it based on how well you scored. The two exams were 24 hours and almost the exact same as the homework. This class is basically a free A. Take Pang!

pang is a g. just be careful with your TA tho because my TA was SO NITPICKY - i had ruoxi and she took points off for the smallest things (literally word choice). i learnt a lot tho !!! the lab reports can get kinda long (especially because they're online) but its honestly pretty manageable if you plan ahead and its easy, just long (so split it over a few days so you don't get tired out).

overall just take pang hes a legend and is honestly so helpful and organised<3