Question

Calculate the mass of hydrochloric acid in 200 cm³ of 0.2 N solution of it. What volume of this acid solution will react exactly with 25 cm³ of 0.14 N solution of sodium hydroxide?

Answer 1

Normality of hydrochloric acid = 0.2; Eq. mass of hydrochloric acid = 36.5 

Mass of hydrochloric acid in one dm³ of the solution is given by W = N × E = 0.2 × 36.5 g

∴  Volume of the acid solution required = 17.5 cm³