Question

What is the final concentration if a 50.0 mL sample of a 15% H2SO4 solution is added to water to give a final volume of 250 mL?

1.5% H2SO4 solution

25% H2SO4 solution

10% H2SO4 solution

3% H2SO4 solution

Answer 1

The answer to your question is 3% H2SO4 solution

Step-by-step explanation:

Data

Concentration 2 = C₂ = ?

Concentration 1 = C₁ = 15 %

Volume 1 = V₁ = 50 ml

Volume 2 = V₂ = 250 ml

Formula

C₁V₁ = C₂V₂

Solve for C₂

C₂ = C₁V₁ / V₂

Substitution

C₂ = (15)(50) / 250

Simplification and result

C₂ = 3 %