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A sample of H2SO4 (density 1.787 g mL–1) is labelled as 86% by weight.

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A sample of H2SO4 (density 1.787 g mL–1) is labelled as 86% by weight. What is molarity of acid ?
What volume of acid has to be used to make 1 litre of 0.2 M H2SO4 ?

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Solution: (i) Molarity of H2SO4

Molarity of H2SO4

(ii) Volume (V1) of acid (15.68M) required to prepare 1000mL (V2) of molarity (M2), 0.2M. Applying, molarity equation,

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