CHEM 220LQuantitative Chemical Analysis Laboratory
- Units
- 0.25
- Faculty
- Science
- Subject
- Chemistry
When it runs
- F24
- W25
- S25
- F25
- W26
- S26
- F26
- W27
- S27
Ran in 3 of the last 7 terms. Winter 2027: not on the schedule. Spring 2027: schedule not out yet.
Selected experiments for students taking CHEM 220.
Prerequisites
- Complete all of the following
- Must have completed at least 1 of the following:
- Enrolled in H-Biochemistry, H-Biochemistry - Biotechnology Specialization, H-Chemistry, H-Chemistry - Computational Specialization, JH-Chemistry, H-Materials & Nanosciences, H-Medicinal Chemistry, or H-Science & Business - Biochemistry Specialization
Corequisites
- Completed or concurrently enrolled in:
- CHEM220 - Intro Analytical Chemistry (0.50)
Antirequisites
None listed.
Leads to
Fall 2026 sections
| Section | Class | Enrolled | Meets |
|---|---|---|---|
| LAB 001 | 7117 | 31 / 30 | T 08:30–11:20 |
| LAB 002 | 7118 | 32 / 30 | T 14:30–17:20 |
| LAB 003 | 7490 | 32 / 30 | T 19:00–21:50 |
| LAB 004 | 7911 | 32 / 30 | Th 14:30–17:20 |
| LAB 005 | 7912 | 32 / 30 | Th 19:00–21:50 |
Reviewed on UW Flow
88% liked it55% easy95% useful
From 57 ratings and 14 comments on UW Flow. The most helpful comments, quoted as written, without names. Read them all on UW Flow.
Tips:
1. Do your experiments at a good pace but do it right and make sure you know what you're doing every experiment. A lot of my friends got shitty results/marks because they rushed their experiments.
2. Titration is key learn how to do it properly.
3. Watch experimental procedure videos before the lab to provide a visual guide for the steps.
4. I like to write out a list of things to complete every lab this keeps me on track.
5. TAs are AWESOME
6. She'll usually open the lab ~10 mins early so if you get there early you can start setting up for the lab. (MAKE sure to wash your equipment every lab for best result)
7. Adding onto 6 read the pages in the lab manual detailing how to wash…Nov 2014 · liked it · 3 found this helpfulOn UW FlowRemove this
VERY challenging but useful lab! You have 3 hours but it feels like half an hour considering the amount of work we have to do for each experiment. A majority of the mark is for your accuracy and you need to find the right balance of being careful when measuring masses/ making standards, but not being overly cautious to the point where you're wasting time. You need to feel confident and prepared during the lab. Feeling unsure of any step will make you waste time and not finish, so prepare for the labs at least a week in advance to MEMORIZE the masses and volumes you need. It's way faster than constantly re-reading your procedure during the lab.
Dec 2021 · liked it · 1 found this helpfulOn UW FlowRemove this
CHEM 220L is the most fun, and the most stress, I've had in a lab so far in my degree (2A Med Chem). Stacey does a great job explaining the experiments and being there if you have questions, and she hires TAs well. The experiments are all doable in the timeframe given, but you have to be good at managing your time and sometimes have to go at a pace faster than what you're comfortable with, but by the end of the lab you'll be so much better off for it. A lot of your grade is based on the quality of your lab results, and you'll have at least one where you don't do well so don't go in expecting this to be an easy mark like some other labs, but you can absolutely do well in it. I learned so…
Dec 2025 · liked itOn UW FlowRemove this
Really enjoyed this lab along with 250L if you read the procedure before hand you would be perfectly fine for the lab except for gravimetric which did take up time for some of us the rest of the labs could be done along with clean up in 2 hours and 30 minutes. Loved Stacey as my lab instructor and the TA’s were always willing to help. Also maintain a clear and neat lab book and update it weekly and retain what you learn in boot camp 😉
Mar 2023 · liked itOn UW FlowRemove this
unknown submissions are a killer in this course
Dec 2022 · liked itOn UW FlowRemove this
Discussed on r/uwaterloo
19 posts and comments in 16 threads mention CHEM 220L, July 2012 to December 2024. Quoted word for word, newest first; each reply sits under the post and the comment that started its branch. Search r/uwaterloo for newer posts.
Spring 2022
Looking for CHEM 200 level courses suggestions/ Science and Aviation program 3 points, 14 comments
“Hi guys, Im starting my first year as a second year student at waterloo this fall for science and aviation program. …”
u/Tea_and_cookiess: “If Stacey is teaching CHEM 220, I cannot recommend it enough! It’s been my favourite course all degree and Stacey is such a good lecturer! It’s not a hard course but is super helpful”
u/Tea_and_cookiess: “If you ask Stacey, she’ll try to let you into CHEM 220L, if you ask Jake Fisher you can try to get into CHEM 250L. Most labs you can get into with a few emails!”
People graduating this term from UW—-any staff or prof you want to meet and say goodbye to before you leave for good? 4 points, 8 comments
u/kenatsu: “Tbh I have a list of profs I want to say f u for saying I wouldn’t make it to graduation but Stacy from CHEM220L/224L was an amazing helper through my undergrad and genuinely wanting to see each student succeed”
Winter 2022
Most useful courses in your undergrad 8 points, 8 comments
“Whether you’ve graduated and are working or not, what were the most useful courses you took for what you do now?”
u/YesssChem: “Chem 140 and 220L/224L”
Fall 2021
Questions about Environmental Science (Switching to, etc) 2 points, 1 comment
u/Ride-Low: “… I'm in biochem and while its been my dream for a few years now, this term (2A) I've really been struggling with my lab course CHEM 220L. …”
Winter 2021
Should I move? 2 points, 4 comments
u/BotDiffASF: “I have 2 lab courses next term which are offered on uw campus. Im a first year rn whos never been to campus before. The courses are CHEM 220L and CHEM 250L.”
u/Midnight1131: “I recommend doing CHEM 220L on campus. It's a pretty intense lab course and builds a lot of core skills. If you're planning on taking CHEM 224L later, then imo it will be a huge learning curve to go from no lab to 224L.”
u/sentfromtrash: “… i took chem 220L during the fall 2020 term. when i was taking it, anyone who couldn’t come in person got an IP(in progress) on their transcript. …”
CHEM224L Thoughts? 2 points, 1 comment
“Hey guys! I was wondering if anyone who took CHEM224L could give me any insights on the course structure and possibly the syllabus? Also, how is it structured if labs are every week? Any tips? …”
u/3point14luong: “… You've probably taken its prereq (CHEM 220L) so you should have had Stacey as a lab instructor before. The 224L runs in a similar manner, but with a few key differences. First, the lab is 6 hours long instead of the 3 hours that was seen in 220L. …”
So far, who is your favourite professor and what course do they teach? 4 points, 13 comments
“My favourite professor is Moffatt and the course I liked was BIOL 309.”
u/kolliflower: “My favourite has been lab instructor Stacey Lavery! (Chem 220L & 224L)”
Fall 2019
Courses whose grades are not up yet megathread? 17 points, 33 comments
“Stat 230 Online :(((((((( CS245”
u/Listired17: “Chem 220L”
Spring 2019
Can I get a co-op with a shit average? 10 points, 13 comments
“feeling a lil scared looking at my grades tbh. Don't roast but I have a solid 63 average and I'm in 2a biochem. Am I gonna get a good co-op? Has anyone been in this position? Any advice (ex. …”
u/sgangster: “… etc.) Play up the fact that you did (or will be in) CHEM 220L and BIOL 309. Those are the most relevant courses to co-op, and gives 2A biochems an advantage over biology students. …”
Fall 2018
Feel so lost... please give me some advices :( 2 points, 5 comments
“Hi guys, I'm an international transfer student from Malaysia and im in Honours Life Science, Biochemistry doing 2B term this Fall 2018. …”
u/cmm557: “… I took chem 220L two years ago and there was no final for it and I don't think there is one now either. But yes, some labs do have exams so you will have the course exam as well as the lab exam. …”
Fall 2017
Any way to disable UWCourseLinker from posting? 16 points, 26 comments
“posting a reply to my comment I find the bot annoying.”
u/Jackhofmann: “PSYCH 483 PSYCH 484 PSYCH 485 PSYCH 486 PSYCH 490R PSYCH 499A PSYCH 499B PSYCH 499C PSYCH 621 PSYCH 630 PSYCH 677A PSYCH 704A PSYCH 704B PSYCH 707 PSYCH 710 PSYCH 714 PSYCH 717 PSYCH 720A PSYCH 721A …”
u/Jackhofmann: “… CHE 760 CHEM 100 CHEM 101 CHEM 120 CHEM 120L CHEM 123 CHEM 140 CHEM 201 CHEM 209 CHEM 220 CHEM 220L CHEM 237 CHEM 237L CHEM 240 CHEM 250L CHEM 254 CHEM 262 CHEM 262L CHEM 264 CHEM 266 CHEM 266L CHEM 267 CHEM 302 CHEM 310 CHEM 310L CHEM 323 CHEM 331 CHEM 333 CHEM 335L CHEM 339 …”
Will dropping the lab component of a lecture make me under the full course load? 2 points, 2 comments
“Im in 2a with 5 lectures and 2 labs. Im thinking of dropping the chem220 lab component and taking it next year. Would that put me under the full course load that i need for many grad schools?”
u/JukeJ007: “I wouldn't drop chem220L if I were you. Stacey makes it a pretty fair lab and you wouldn't be able to take chem224L without taking 220L. It also teaches you basic analytical chemistry techniques which youd prolly need for coop”
Check it elsewhere for Fall 2026
- Undergraduate Calendar, 2026–27The official entry
- Requirements for Fall 2026Waterloo’s requisite checker
- Schedule of Classes, Fall 2026Instructors, rooms, live seats
- Quest Class SearchWhere you enrol
- Course outlinesSyllabi from past terms (UW login)
- UW FlowStudent ratings and reviews
- WClassesPast sections back to 2004, and who taught them