Addition of 0.6 g of a compound to 50 mL of benzene (density =0.88 g/m – InterviewSolution

1.	Addition of 0.6 g of a compound to 50 mL of benzene (density =0.88 g/mL) lowers the freezing point from 5.51oC to 5.01oC. If Kf for benzene is 5.1 K kg mol−1, calculate the molecular weight of the compound.
Answer» Addition of $0.6 g$ of a compound to $50 m L$ of benzene $(density = 0.88 g / m L$ ) lowers the freezing point from ${5.51}^{o} C t o {5.01}^{o} C$ . If $K_{f}$ for benzene is $5.1 K k g m o l^{- 1}$ , calculate the molecular weight of the compound.

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