1.

How much water should be added to 100 ml of1MH_(2)SO_(4) solution to make it exactly 0.1 N ?

Answer»

1200 ml
400 ml
1800 ml
1900 ml

Solution :100 ml of 1M `H_(2)SO_(4)=100` ml of `2N H_(2)SO_(4)`
Applying `N_(1)V_(1)=N_(2)V_(2)`
`2xx200=0.1xxV_(2)`
or `V_(2)=(1xx200)/(0.1)=2000` ml
Amt. of water to be ADDED `=2000-100`
`=1900` ml.


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