Problem: 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 1.93 g of quinine is dissolved in 25.0 g of cyclohexane, the freezing point of the solution is lowered by 4.95°C. The freezing point and constant for cyclohexane can be found here. Calculate the molar mass of quinine.

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Problem Details

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 1.93 g of quinine is dissolved in 25.0 g of cyclohexane, the freezing point of the solution is lowered by 4.95°C. The freezing point and constant for cyclohexane can be found here. 

Calculate the molar mass of quinine.

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Our tutors have indicated that to solve this problem you will need to apply the Freezing Point Depression concept. You can view video lessons to learn Freezing Point Depression Or if you need more Freezing Point Depression practice, you can also practice Freezing Point Depression practice problems .

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Based on our data, we think this problem is relevant for Professor Frost's class at MARSHALL.