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A sample of H(2)SO(4) (density 1.787 g/...

A sample of `H_(2)SO_(4)` (density `1.787 ` g/mL) is labelled as 86 % by weight . What is the molarity of acid ? What volume of acid has to be used to make 1 litre of `0.2 ` M `H_(2)SO_(4)`

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Volume of 100 gm `H_(2)SO_(4) " solution " = 100/(1.787) ` mL
` = 100/(1.787 xx 1000) `
Moles of `H_(2)SO_(4) " in " 100 gm (86)/(98) `
`M_(H_(2)SO_(4)) = 86/(98 xx 100/(1.787 xx 1000)) `
Let V volume of `H_(2)SO_(4)` used to prepare 1 litre of `0.2 M H_(2)SO_(4)`
` :. V xx 15.68 = 1000 xx 0.2 rArr V = 12.75 ` mL
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