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A 1.60-g sample of a mixture of naphthalene (C10H8) and anthracene (C14H10) is dissolved in 20.0...

A 1.60-g sample of a mixture of naphthalene (C10H8) and anthracene (C14H10) is dissolved in 20.0 g benzene (C6H6). The freezing point of the solution is 2.75°C. What is the composition as mass percent of the sample mixture? The freezing point of benzene is 5.51°C and is 5.12°C·kg/mol.

% naphthalene by mass?

% anthracene by mass?

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