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What volume at STP of gaseous ammonia wi...

What volume at STP of gaseous ammonia will be required to be passed into 100 ml of `0.5 M H_(2)SO_(4)` to bring down its strength to 0.25 M?

A

`1.560L`

B

`1.120L`

C

`1.680L`

D

`2.240L`

Text Solution

Verified by Experts

The correct Answer is:
B
No. of moles of `H_(2)SO_(4)` reacted with gaseous = ammonia is
`=(0.5-0.25)xx(100)/(1000)=0.025" moles"`
`2NH_(3)+H_(2)SO_(4)rarr(NH_(4))_(2)SO_(4)`
at STP 1 mol `H_(2)SO_(4)=2` mol of `NH_(3)`
`therefore 0.025 mol H_(2)SO_(4)` = 0.5 mol `NH_(3)`
`=0.05xx22.4` lit
= 1.12 lit
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