Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NTA Abhyas NEET2020ChemistryIonic EquilibriumPractice

A weak acid H X ( K a = 10 – 5 ) on reaction with NaOH gives NaX. For 0.1 M aqueous solution of NaX, the % hydrolysis is

Options

  1. A0.001%
  2. B0.01%
  3. C0.15%
  4. D1%

Correct answer

B. 0.01%

Step-by-step solution

X - + H 2 O ⇌ HX + OH - 1 - h h h h = K w K a × C = 10 - 14 10 - 5 × 0.1 = 10 - 4 Or 10 - 2 % i.e., 0.01 %

Practice Ionic Equilibrium on Quantrex Academy →

More from Ionic Equilibrium

What amount of NaOH should be dissolved in a 500 mL solution, so that the p ^ H of solution is 12 at 298 K ? 2026Which of the following buffer solutions is used for precipitation of cations of the III A group? 2026The degree of dissociation of weak acid is directly proportional to 2026Which from the following is Lewis base? 2026The solubility of Fe(OH) ₃ is x mole per liter. Find its K_ sp . 2026The Basic buffer solution is made with 0.1 M NH ₄ OH and 0.2 M NH ₄ Cl . If K_b for the base is 1.8 10⁻⁵ , what is the pH of the buffer? 2026The hydrogen ion concentration of the ocean is about 2 10⁻⁹ M . What is the pOH of ocean? 2026Calculate the dissociation constant of a weak monobasic acid if it is 0.04% dissociated in a 0.01M solution. 2026 Full Ionic Equilibrium list All NTA Abhyas NEET PYQs