Question

20. ml of 0.2 N HCl and 40 ml of 0.4 N HNO are mired and the solution is diluted up to 100 mi. Calculate the normality of the soluton. ?​

Answer 1

Answer:

Normality of 0.2M H2SO4 =0.2 X 2=0.4 Normality of 0.2M NaOH =0.2 x 1= 0.2 N

No.of equivalent of H2SO4 present in 100 ml. = 0.1. X0.4 =0.04

No.of equivalent of NaOH present in 100 ml. = 0.1 x 0.2 =0.02

No.of equivalent of H2SO4 present in excess. =0.02

100ml.of 0.4N H2SO4 contains =0.4 normal

100 ml.of 0.2N NaOH contains =0.2 normal

So the resulting solution contains =0.4–0.2= 0.2Normal

200 ml.of solution contains 0.2 equivalent of H2SO4

So the normality =0.2/2=0.1 N

The normality of the resulting solution will be 0.1N of H2SO4.