1.

What volume of water is to be a added to 100cm^(3) of 0.5 M NaOH solution to make it 0.1 M solution?

Answer»

200 `CM^(3)`
400 `cm^(3)`
500 `cm^(3)`
100 `cm^(3)`

Solution :`M_(1)V_(1)= M_(2)V_(2)`
`0.5xx100=0.1xxV_(2)V_(2)=500cm^(3)`
VOLUME of WATER to be added to `100cm^(3)` of solution `=500-100 =400 cm^(3)`


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