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Calculating Molar Mass from Boiling Point Elevation
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This short video shows you how to calculate the molar mass of a nonelectrolyte (van't hoff=1) using boiling point elevation.
Example Question:
5.00 g of an organic solid is dissolved in 100.0 g of benzene. The boiling temperature of this solution is 82.42 °C. The boiling temperature of pure benzene is 80.1 °C; Kb = 2.53 °C /m. What is the molecular weight of the unknown compound?
Example Question:
5.00 g of an organic solid is dissolved in 100.0 g of benzene. The boiling temperature of this solution is 82.42 °C. The boiling temperature of pure benzene is 80.1 °C; Kb = 2.53 °C /m. What is the molecular weight of the unknown compound?
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