[CHM 112] Questions to practice for quiz

Tue Apr 12 19:51:10 EDT 2016

As I said, I was gonna send some questions!

You know ya boy got y'all.

1) If I wanted to make a buffer system with a pH of 9.20, what weak acid/weak base combination would I choose? Also, what would be the ratio between weak acid and weak base?

2) pKa of acetic acid (CH3COOH) is 1.8x10^-5. Mike makes a buffer system with 2.0 M of CH3COOH and 2.2 M CH3COO in a 1 liter flask.

10 mL of 1.5 M NaOH is added to the system. What is the new pH?

Use your book and work with others to solve these 2 answers! :)

Michael Kshatri

Senior Advisor of Spanish Club
President of Premier Penmen
SI Leader
SI Mentor
ARC Ambassador

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