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An element X (Atomic mass = 25) exists as X4 in benzene. 51 g of saturated solution of X in benzene was added to 50.0 g of pure benzene. The resulting solution showed a depression in freezing point of 0.55 K. The solubility (in g) of X per 100 g of benzene is: (Kf for benzene=5.5 K kg mol–1) (Assume 100% association takes place.) |
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Answer» An element X (Atomic mass = 25) exists as X4 in benzene. 51 g of saturated solution of X in benzene was added to 50.0 g of pure benzene. The resulting solution showed a depression in freezing point of 0.55 K. The solubility (in g) of X per 100 g of benzene is: (Kf for benzene=5.5 K kg mol–1) (Assume 100% association takes place.) |
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