Question

An aqueous solution of calcium hydroxide is standardized by titration with a 0.197 M solution of perchloric acid. If 29.1 mL of base are required to neutralize 19.3 mL of the acid, what is the molarity of the calcium hydroxide solution? Mcalcium hydroxide Submit Answer Try Another Version 1 item attempt remaining

Answer 1

According to the law acidimetry and alkalimetry, V1S1 = V2S2 or, S, = 5v; or, = (19.3 x 0.197)/29.1 = 0.1306 (M) where, V, = volume of alkali solution = 29.1 mL Si = strength of alkali solution V2 = volume of acid solution=19.3 mL S, = strength of acid solution = 0.197 (M) Strength of calcium hydroxide 0.13 (M)