Look at sample problem 18.12 in the 8th ed Silberberg book. Write a balanced chemical equation (salt hydrolysis). So acetate ion + water goes to acetic acid +OH. Write the Kb expression. Notice it is a Kb since hydroxide ion is a product. Ka is given for acetic acid so calculate the Kb for the acetate ion. Set up an ICE chart. Find x which represents hydroxide ion concentration, find pOH, convert to pH and enter that to 2 decimal places. What is the pH of 0.11M sodium acetate solution at 25C ? The Ka of acetic acid is 1.8105