Answer to Question #74415 in General Chemistry for Olivia Hurst

Question

1. What is the pH of a 0.165 M weak acid with a pKa of 5.02?

2. What is the pH of a 1.0 L solution that is 0.1 M acetic acid after you add 0.063 moles of sodium acetate (assuming the volume doesn't change)?
Ka of acetic acid is 1.8 x 10-5

I need help with these two in-class problems to use as examples for the rest of the questions for homework. Thank you.