1. Chemistry Learning Center
230 Davenport Hall
Chemistry TAs available from 9 am – 5pm Mondays – Fridays.
Chemistry 202 TAs in the CLC:
Mondays: 11am-1pm, 3pm-5pm
Wednesdays: 3pm-5pm
Thursdays: 3pm-5pm

2. Lon-Capa 1st HW assignment due Friday, 9/2, 5 pm. It is open now.
1st Quiz due Sunday, 9/4 by 10 pm. It will open today at 5 pm.
30 minutes once started.
2 attempts per problem.

3. For Friday Continue working on Lon-Capa. Start Chapter 5.
See me or me if there are any questions or concerns.

4. At This Point… Finished Chapter 4 (reading and text homework).
Watched Chapter 4 video (and all Chapter 3 videos).
Finished most Lon-Capa homework.
Ready for Chapter 5.

5. James Scholar Opportunity
REACT (Reaching and Education America's Chemists of Tomorrow) is an outreach program that goes to elementary schools to teach students chemistry.
September 6th, 7th, or the 8th at 7pm in room 112 Transportation Building.
For questions please the REACT student president Angela Hyon at

6. Concentration of Vinegar?
Knowing that vinegar is an aqueous solution that is 5.00% acetic acid [HC2H3O2(aq)] by mass and has a density of 1.01 g/mL, determine the concentration of vinegar in terms of molarity.

7. NaHCO3(s) + HC2H3O2(aq) → NaC2H3O2 (aq) + H2O(l) + CO2(g)
How Much Vinegar?
NaHCO3(s) + HC2H3O2(aq) → NaC2H3O2 (aq) + H2O(l) + CO2(g)
We have 10.5 g of baking soda. Knowing that vinegar is 0.841M acetic acid, determine the minimum volume of vinegar required for a complete reaction. [~149 mL]

8. Clicker Question
How much water must be added to mL of a M NaCl solution to make a M solution of NaCl?
A) 42.1 mL
B) 62.5 mL
C) mL
D) mL
E) mL

9. Clicker Question
You mix mL of 0.100M lead(II) nitrate with mL of 0.100M sodium chloride. Determine the concentration of Pb2+ in the final mixture.
A) M
B) M
C) 0.100M
D) 0.150M
E) 0 M