1L HA + H,O= A" + H;O* Figure 1 HA + H,0=A + H;O* Figure 2 HA + H,0→ A" + H;O* Figure 3

A solution contains 2.25 M acetic acid, 1.21 M sodium bromide, 0.85 M lithium bromide, and 0.80 M sodium acetate. (Assume all the salts dissociate completely in water.) a) Identify each substance in the solution as acidic, basic, or neutral. Briefly explain how you found each answer. b) Calculate the pH of the solution.

Determine the pH of a solution that is 0.50 M CH3COOH and 0.30 M CH3COONa.

Enough of a monoprotic acid is dissolved in water to produce a 1.11 M solution. The pH of the resulting solution is 2.85. Calculate the K, for the acid.