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06-03-2024
Chemistry

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Vapor pressure of pure water at 298 K is 23.8 mmHg. 50 g of urea (NH₂CONHₐ2) is dissolved in 850 g of water. Calculate the vapor pressure of water for this solution and its relative lowering.
a) Vapor pressure = 22.4 mmHg, Relative lowering = 6.30%
b) Vapor pressure = 21.6 mmHg, Relative lowering = 5.45%
c) Vapor pressure = 20.8 mmHg, Relative lowering = 4.60%
d) Vapor pressure = 19.5 mmHg, Relative lowering = 3.75%

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