Question

10 mL of a 0.65 M KMnO4 solution is diluted to a concentration of 0.055 M. What is the final volume of the diluted solution?

a. 20.0 mL
b. 0.846 mL
c. 108 ml
d. 118 ml

Answer 1

118 mL

Step-by-step explanation:

We can easily calculate the final volume of the solution (V₂) by applying the following mathematical expression:

V₁ x C₁ = V₂ x C₂

⇒ V₂ = V₁ x C₁/C₂

Given:

V₁ = 10 mL

C₁ = 0.65 M

C₂ = 0.055 M

We replace the data in the mathematical expression to calculate V₂:

V₂ = V₁ x C₁/C₂ = 10 ml x (0.65 M)/ (0.055 M) = 118.18 mL ≅ 118 mL