1.

Calculate the volume of 80%H_(2)SO_(4) (density = 1.80 g/cc) required to prepare on litre of 20% H_(2)SO_(4) (density = 1.25 g/cc).

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SOLUTION :`"MOLARITY of 80 % "H_(2)SO_(4)=(80//98)/(100//1.80)xx1000=14.69M`
`"Molarity of 20% "H_(2)SO_(4)=(20//98)/(100//1.25)xx1000=2.55M`
`underset((80%H_(2)SO_(4)))(M_(1)V_(1))=underset((20% H_(2)SO_(4)))(M_(2)V_(2))`
`i.e.""14.69 xxV_(1)=2.55 xx1000"or"V_(1)=173.6cm^(3)`.


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