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Question

A solution of 1.25g of non - electrolyte in 20g of water freezes at 271.94 K. If Kf = 1.86 K kg mol-1, then the molecular weight of the solute will be:

A

179.79g mol-1

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B

207.8 g mol-1

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C

209.6 g mol-1

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D

109.6 g/ mol-1

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