Q.

Find the molality of H2SO4 solution whose specific gravity is 1.98 g ml-1 and 95% by volume H2SO4

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Detailed Solution

H2SO4 is 95% by volume weight of H2SO4=95gVol of solution = 100 ml∴ Moles of H2SO4=9598, and weight of solution =100×1.98=198gWeight of water =198-95=103gMolality =95×100098×103=9.412Hence molality of H2SO4 solution is 9.412
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