1. Write the two dissociation reactions for sulfuric acid in water. In each reaction, label the conjugate pairs, acids and bases.

2. What is the pH of a 0.00200 M solution of nitric acid (HNO₃)?

3. What is the pH of a 0.00200 M solution of nitrous acid (HNO₂)? Ka = 4.5 x 10^-4

4. What is the aresenate concentration in a 1.000 M solution of arsenic acid? (H₃AsO₄)

Ka₁ = 4.8 x10^-3, Ka₂ = 1.0 x 10^-7, Ka₃ = 1.0 x 10^-13

5. When 30.00 ml of 1.000 M HCl are titrated with 0.500 M NaOH, what is the pH after additions of 0, 1.00, 30.00, 60.00, and 75.00 ml of the base. (Use the back of this page if you need more space)