Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
BITSAT 2016
Exam
BITSAT
Year
2016
Subject
Chemistry
Chapter
Ionic Equilibrium

BITSAT 2016 · Chemistry · Ionic Equilibrium

The percentage hydrolysis of 0.15 M solution of ammonium acetate,...

The percentage hydrolysis of 0.15M0.15 \mathrm{M} solution of ammonium acetate, Ka\mathrm{K}_{\mathrm{a}} for CH3COOH\mathrm{CH}_{3} \mathrm{COOH} is 1.8×10−51.8 \times 10^{-5} and Kb\mathrm{K}_{\mathrm{b}} for NH3\mathrm{NH}_{3} is 1.8×10−51.8 \times 10^{-5}

Options

  1. A0.556
  2. B4.72
  3. C9.38
  4. D5.56

Correct answer

A. 0.556

Step-by-step solution

α=KwKa×Kb=1×10−141.8×10−5×1.8×10−5=0.55\alpha=\sqrt{\frac{\mathrm{K}_{\mathrm{w}}}{\mathrm{K}_{\mathrm{a}} \times \mathrm{K}_{\mathrm{b}}}}=\sqrt{\frac{1 \times 10^{-14}}{1.8 \times 10^{-5} \times 1.8 \times 10^{-5}}}=0.55
Practice Ionic Equilibrium on Quantrex Academy →

More from Ionic Equilibrium

The pH of 1 N aqueous solutions of HCl , CH_3 COOH and HCOOH follows the order: BITSAT 202420 mL of 0.1 M acetic acid is mixed with 50 mL of potassium acetate. K_α of acetic acid… BITSAT 2024Which of the following molecules acts as a Lewis acid? BITSAT 2023Which one of the following molecular hydrides acts as a Lewis acid? BITSAT 2023100 ~mL of 2 M of formic acid (p K_a=3.74) is neutralise by NaOH , at the equivalence… BITSAT 2022What is [NH_4^ + ] in a solution that is 0.02 M NH_30.01 M KOH ? [K_b (NH_ 3 )=1.8 ×10^… BITSAT 2022The solubility of silver bromide in hypo solution involves the formation of: BITSAT 2021A solution of NH_ 4 Cl and NH_ 3 has pH=8.0. Which of the following hydroxides may be… BITSAT 2020 Full Ionic Equilibrium list All BITSAT PYQs