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45. Boiling point of chloroform was raised by \( 0.323 K \), when \( 0.5143 g \) of anthracene was dissolved in \( 35 g \) of chloroform. Molecular mass of anthracene is: \( \left( Kb\right. \) for \( \left.CHCl _{3}=3.9 K kg mol ^{-1}\right) \) a) \( 79.42 g / mol \) b) \( 132.32 g / mol \) c) \( 177.42 g / mol \) d) \( 242.32 g / mol \)

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Answer: c) 177.42 g / mol

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