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Question: quinine is a natural product extracted from the bark of...

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Quinine is a natural product extracted from the bark of the cinchona tree, which is native to South America. Quinine is used as an antimalarial agent. When 1.57 g of quinine is dissolved in 25.0 g of cyclohexane, the freezing point of the solution is lowered by 4.03 °C. The freezing point and Ky constant for cyclohexane can be found here. Calculate the molar mass of quinine. Number g/mol
Constants for freezing-point depression and boiling-point elevation calculations at 1 atm: Solvent Formula Kf value Normal freezing Kb value Normal boiling OC/m) point (C)(C/m)point (C) 1.86 H20 water benzene H 5.12 cyclohexane C6H12 20.8 ethanol carbon tetrachloride 0.00 5.49 6.59 0.512 100.00 2.53 80.1 2.92 1.22 5.03 76.8 C2H6O 1.99 CCI4 29.8 80.7 78.4 -22.9 camphor Croo 37.8 176
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