Calculate the pH of each solution. A solution containing 0.0215 M maleic acid and 0.0290 M disodium maleate. The a values for maleic acid are 1.20×10−2 (a1) and 5.37×10−7 (a2).
pH=

A solution containing 0.0300 M succinic acid and 0.017 M potassium hydrogen succinate. The a values for succinic acid are 6.21×10−5 (a1) and 2.31×10−6 (a2).
pH=

Thank you for the help! I know i have to use the Ka values and the HH equation but it always comes out wrong for me :/