Question

What volume at n.t.p of ammonia gas will be required to be passed into 30 ml of N h2so4 solution to bring down the acid normality to 0.2N?

Answer 1

Suppose original morality = N₁ = 0.5
New morality = N₂=0.2
V₂= 30
using the formula N₁V₁=N₂V₂
V₁= 0.5 x 30/ 0.2
V₁= 75mL

Answer 2

Explanation:

Meq. of H2SO4 (original) =30×1=30. Meq. of H2SO4 after passing NH3=30×0.2=6. Meq. of H2SO4 reacted =Meq. of NH3 =30-6=24