What volume at NTP of ammonia gas will be required to be passed into 30 mL of 1N H2SO4 to bring down the acid normality to 0.2 N ?

Meq.  of  H2SO4 original =NV =  30 × 1=30Meq.  of  H2SO4 after  passing  NH3= 30 × 0.2=6Meq.  of  H2SO4  reacted  = Meq.  of NH3                                       =30−6=24∴    wNH317 ×1000=24,   wNH3=0.408  g∴  VNH3  at  STP=0.40817 ×  22.4=0.5376 L                           =537.6  mL