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[" The vapour pressure of benzene at "80...

[" The vapour pressure of benzene at "80^(@)C" is "],[" lowered by "10mm" by dissolving "2g" of a non- "],[" volatile substance in "78g" of benzene.The "],[" vapour pressure of pure benzene at "80^(@)C" is "],[750mm" .The molecular mass of the substance "],[" will be ",gmol^(-1)" ."]

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The vapour pressure of benzene at 80^@C is lowered by 10 mm by dissolving 2g of a non- volatile substance in 78 g of benzene . The vapour pressure of pure benzene at 80^(@)C is 750 mm . The molecular mass of the substance will be _______ g mol ^(-1) ?

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The vapour pressure of benzene at 80^(@)C is lowered by 10mm by dissoving 2g of a non-volatile substance in 78g of benzene .The vapour pressure of pure benzene at 80^(@)C is 750mm .The molecular weight of the substance will be:

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