Question

The volume of water which should be added to 300 ml of 0.5 molar naoh solution so as to get a solution of 0.2 molar is

Answer 1

the volume of water never can be 300ml

Answer 2

Answer:

450 ml

Explanation:

Applying the molarity equation

M1 V1 = M2 V2

(Dilute)   (conc)

0.2 x V1 = 0.5 x 300

v1= 0.5 x 300 / 0.2 = 750 ml

Volume of water to be added = 750- 300 = 450ml