I will be on the lookout to take another class with Dr. Pang at the first chance I see a class open. He is THE BEST. Always extremely clear and concise with his explanations and answers. His office hours are so useful and provides so many resources for extra practice. I loved this class so much despite not being able to have the in person experience to do the labs. If you see this class open TAKE IT!!!!

Workload is not that bad and very manageable to break up across the week. His exams are very reasonable, not always easy but if you studied a bit and paid attention to his examples, you should be able to get through the exams well. For lab reports and homework, don't guess on sig figs and details, if you have questions ASK!! (He will answer promptly, he always replied to mine within 30 mins-1 hr) Those can cost a lot of points that will add up. Your TA's will grade your homework and reports, so they will also help!
He even offers bonus points if you can do well on the writing assignment so that also helps boost your grade if needed.

And he doesn't lie about how long things will take (even exams and quizzes, even if you do have 24 hrs.) So take it seriously when he says that week's lab report will take some time!!!

Good luck and have fun, Dr. Pang is the GOAT

Professor Pang is a great lecturer and the assignments and lab reports are very straightforward. Discussion sections were relatively short during the virtual setting which was very nice; most sections consisted of doing practice problem sets in concordance with the homwork and vlr's. Assignments and lab reports are due a week later but I would recommend starting as soon as possible and staying on track just to solidify your understanding of concepts and you will be fine.

Lectures: Clear and to the point. Doesn't waste your time. You download some powerpoint and listen. Talks about everything you need to know for this class and does a really good job.

Homework: Does a good job checking for comprehension.

Virtual Lab Rooms: Given the online environment, these do quite a good job of introducing students to various techniques. It's obviously not doing the experiments yourself, but the quality of the assignments are really high and trains students not only how to do experiments, but also to use various experimental and analysis tools effectively.

Weekly Workshops: MyUCLA advertises a 2 and a half hour session. In reality, it takes about 45 to 60 minutes and we can leave when we're done. The worksheets are very relevant to the lectures and homework.

Exams: Really fair and comprehensive of lecture and lab information. Good level of difficulty. Computation and experimental application based questions mostly.

Overall: Really cool class. Too bad I couldn't take it in person. I never feel like I'm wasting time in this class even though I usually don't like chemistry.

this man's a g, he will literally do whatever you need to do well and he really cares about his students a lot.

take him without a second doubt in your mind as this is the easiest and most fun class I've ever taken

There is literally no reason for you to not take this class with this man. Lectures are clear and concise, homework and labs were always straightforward and Pang himself is such a great person. A lot of us were taking both chem 20B and 20L at the same time, and the 20B midterm date often coincided with the 20L lab due dates. WITHOUT ANY OF US ASKING, Pang moved up his lab due dates both times the 20B midterms conflicted. If that doesn't convince you that Pang genuinely cares about us, I don't know what will.

As for the class itself, we have weekly homework and a weekly lab report, which never took more than like four hours in total. I'd definitely recommend taking 20B with 20L, as studying for 20B will basically make it so you won't have to study at all for 20L. The concepts overlap quite a bit and Pang never made his homework very difficult anyway.

Like I said - literally no reason to not like this man.

If you listen closely to your TA, none of the labs should be too difficult. I thought the exams were somewhat tough though. You need to buy a lab notebook, lab coat, and goggles for this course.

Taken during quarantine. This class is actually a fair bit of work for a lab. Its not hard, but its probably about 5-6 hours per week. All the assignments are super clear in their requirements and its pretty easy to get full points. The lab reports are a little boring cuz its literally watching a video of someone doing the lab and then writing a report off that. It requires effort to get an A, but if you dont try you could easily get a B+ at lowest. Homie Johnny Pang would give extensions on homework if there was an exam going on in 20B on the same day. I wasnt even in 20B but everyone got the extentions which was just a cool move by my man. It Covers mainly acids and bases with a few other simple topics sprinkled in.

During Winter 2021, this class was virtual and I felt like his class was pretty good. The lectures were asynchronous and pretty helpful in my opinion. There was also a workshop (discussion) which had mandatory attendance every week.
There was one homework assignment per week, based on the lecture, which was about 10 questions. They usually were pretty straightforward which is nice. There was also one VLR (virtual lab room) report per week, which was tougher and longer. We had to watch some videos and basically do a lab. They weren't too bad, but he is very picky about significant figures, so be careful with them. Checking answers with others also definitely helped me.
The midterm was pretty long but pretty straightforward. It covered what we had already done and was fair.
I would take this class again and would reccomend it to others as well.

Pang is pretty chill. Just do your work on time and you'll be fine. For the midterm the questions were straight off the study guide, make sure you do that. The final was harder, he put really stupid specific stuff on it from specific experiments so you have to like memorize the steps from lab. Overall though he's a good guy and a good teacher. I only went to OH once but he was helpful. If you email him he'll get back to you. I would recommend him.

Professor Pang is extremely helpful! The lab sections were well-run and organized. Pang always had clear and helpful office hours and lecture notes. Only thing is this class is a lot of work with the weekly lab reports but the course material isn't too difficult!