PYQ Vault
EbooksTutor

pH of a salt of a weak acid and a weak base

This type of question, asked 2 times: 2021 Paper 26, 1 Feb 2024. All 2 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    2021 Paper 26

    59
    The pHpH of ammonium phosphate solution, if pkapk_{a} of phosphoric acid and pkbpk_{b} of ammonium hydroxide are 5.23 and 4.75 respectively, is

  2. Question 2

    1 Feb 2024

    60
    KaK_{a} for CH3COOHCH_{3}COOH is 1.8×10−51.8 \times10^{- 5} and KbK_{b} for NH4OHNH_{4}OH is 1.8×10−51.8 \times10^{- 5}. The pHpH of ammonium acetate solution will be