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The freezing point of benzene C6​H6​ is 5.50∘C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in benzene is testosterone. How many grams of testosterone, C19​H28​O2​ (288.4 g/mol), must be dissolved in 287.0 grams of benzene to reduce the freezing point by 0.450∘C ? g testosterone.
The boiling point of diethyl ether, CH3​CH2​OCH2​CH3​, is 34.50∘C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in diethyl ether is chlorophyll. A student dissolves 12.27 grams of chlorophyll, C55​H72​MgN4​O5​ (893.5 g/mol in 262.6 grams of diethyl ether. Use the table of boiling and freezing point constants to answer the questions below. The molality of the solution is m. The boiling point of the solution is ∘C.