A 26 58 mL solution of weak acid is titrated with 0 0426 M NaOH It requires 42 45 mL of the NaOH titrant to reach the

Question

A 26 58 mL solution of weak acid is titrated with 0 0426 M NaOH It requires 42 45 mL of the NaOH titrant to reach the equivalence point Based on the titration curve it is determined that Ka 1 7 x 10 7 for the weak acid Based on this information what was the pH after 48 38 mL of NaOH was added Write your answer to 2 decimal places ie 1 23 or 12 34 Answer At a certain temperature manganese II hydroxide Mn OH 2 has a value of Ksp 3 3 x 10 13 At this roture what is the molar solubility of Mn OH 2 in a solution buffered at pH 11 99

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