Answer to Question #324494 in General Chemistry for Ivan Ackerman

Question

A student needs to prepare 50.0 mL of a 1.30 M aqueous H2O2 solution. Calculate the volume of 5.1 M H2O2 stock solution that should be used to prepare the solution.

Answer 1

n1 = n2

C_M = n / V

n = C_M x V

C_M1 x V₁ = C_M2 x V₂

1.3 x 0.05 = 5.1 x V₂

V₂ = (1.3 x 0.05) / 5.1 = 0.013 L = 13 ml