Question

A student needs to prepare 50.0 mL of a 1.30 M aqueous H 2 O 2 solution. Calculate the volume of 5.0 M H 2 O 2 stock solution that should be used to prepare the solution.

Answer 1

Answer: 13mL

Explanation:

C1 = 5M

V1 =?

C2 = 1.3M

V2 = 50mL

C1V1 = C2V2

5 x V1 = 1.3 x 50

V1 = (1.3 x 50) / 5

V1 = 13mL