MHT CET2010ChemistrySolutions
2.5 ~cm ³ of 0.2 M H ₂ SO ₄ solution is diluted to 0.5 dm ³ . Find normality of the diluted solution.
Options
- A0.2 ~N
- B0.02 ~N
- C0.002 ~N
- D0.04 ~N
Correct answer
C. 0.002 ~N
Step-by-step solution
Given, volume of H ₂ SO ₄ before dilution, V₁=2.5 ~cm ³ =2.5 10⁻³ dm ³ volume of II ₂ SO ₄ after dilution, V₂-0.5 dm ³ Concentration of H ₂ SO ₄ before dilution =0.2 M =0.4 ~N [ 1 ~N =2 M ] Concentration (normality) of H ₂ SO ₄ after dilution, N₂= ? Normality equation is N₁ V₁ = N₂ V₂ (before dilution) (after dilution) aligned 2.5 10⁻³ 0.4 &=N₂ 0.5 N₂ &= 2.5 10⁻³ 0.4 0.5 &=2 10⁻³=0.002 ~N aligned