What volume at NTP of ammonia gas will be required to be passed into 30 mL of NH2SO4 to bring down the acid normality to 0.2 N?

Question

What volume at NTP of ammonia gas will be required to be passed into 30 mL of NH2SO4 to bring down the acid normality to 0.2 N? (A) 556.5 mL (B) 480.5 mL (C) 537.6 mL (D) 438.4 mL

Tardigrade Admin · Accepted Answer

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 ∴ ( wNH3/17) × 1000 = 24, wNH3 = 0.408 g ∴ VNH3 at STP = (0.408/17) × 22.4 = 0.5376 L = 537.6 mL

Q. What volume at $NTP$ of ammonia gas will be required to be passed into $30 m L$ of $N H_{2} S O_{4}$ to bring down the acid normality to $0.2 N$ ?

$556.5 m L$

$480.5 m L$

$537.6 m L$

$438.4 m L$

Q. What volume at NTP of ammonia gas will be required to be passed into 30mL of NH2​SO4​ to bring down the acid normality to 0.2N?

556.5mL

480.5mL

537.6mL

438.4mL

Meq. of H2​SO4​ (original) =30×1=30 Meq. of H2​SO4​ after passing NH3​=30×0.2=6 Meq. of H2​SO4​ reacted = Meq. of NH3​ =30−6=24 ∴17wNH3​​×1000=24,wNH3​=0.408g ∴VNH3​​ at STP=170.408​×22.4=0.5376L =537.6mL

Q. What volume at $NTP$ of ammonia gas will be required to be passed into $30 m L$ of $N H_{2} S O_{4}$ to bring down the acid normality to $0.2 N$ ?

$556.5 m L$

$480.5 m L$

$537.6 m L$

$438.4 m L$