Question

If 32.00 mL of a solution of Ca(OH)2 requires 16.08 mL of a 2.303 M solution of HNO2 for complete titration, what is the molarity of the Ca(OH)2 solution?

Answer 1

For the equilibrium that exists in an aqueous solution of nitrous acid ... calcium hydroxide is dissolved in water until the pH of the solution is 11.44.