Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET Medical202626 April 2026Morning ShiftChemistryIonic EquilibriumActual

Calculate the solubility product of Ca(OH) ₂ if solubility of it is 3 mol dm ⁻³ at 25^ C .

Options

  1. A3
  2. B3 3
  3. C27
  4. D12 3

Correct answer

D. 12 3

Step-by-step solution

The dissociation of Ca(OH) ₂ is given by: Ca(OH) ₂ Ca ²⁺ + 2 OH ^- Let the solubility of Ca(OH) ₂ be s . [ Ca ²⁺] = s [ OH ^-] = 2s The solubility product K_ sp is: K_ sp = [ Ca ²⁺][ OH ^-]^2 K_ sp = (s)(2s)^2 = 4s^3 Given s = 3 mol dm ⁻³ , substituting the value: K_ sp = 4( 3 )^3 K_ sp = 4 3 3 = 12 3 Answer: 12 3

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 MHT CET Medical PYQs