Vapour Pressure of Solutions of Non-Volatile or Volatile Solutes14.356 g of a non-volatile solute is dissolved in 265.0 g of water.The solute does not react with water nor dissociate in solution.Assume that the resulting solution displays ideal Raoult's law behaviour..At 20°C the vapour pressure of the solution is 17.396 torr.The vapour pressure of pure water at 20°C is 17.535 torr.Calculate the molar mass of the solute (g/mol).See example 17.1 on pp718-9 of Zumdahl "Chemical Principles" 8th ed.1ptsSubmit Answer Tries 0/5Now suppose, instead, that 14.356 g of a volatile solute is dissolved in 265.0 g of water.This solute also does not react with water nor dissociate in solution.The pure solute displays, at 20°C, a vapour pressure of 1.754 torr.Again, assume an ideal solution.If, at 20°C the vapour pressure of this solution is also 17.396 torr.Calculate the molar mass of this volatile solute.cf p 719 of Zumdahl "Chemical Principles" 8th ed.

1. Given the information:Mass of non-volatile solute = 14.356 gMass of water = 265.0 gvapour…

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I submitted this question yesterday; the first answer was right, the second was wrong. Please take another look. Thank you! 9.762 g of a non-volatile solute is dissolved in 175.0 g of water.The solute does not react with water nor dissociate in solution.Assume that the resulting solution displays ideal Raoult's law behaviour.At 25°C the vapour pressure of the solution is 23.405 torr.The vapour pressure of pure water at 25°C is 23.756 torr.Calculate the molar mass of the solute (g/mol). answer: 67.0 g/mol -- correct Now suppose, instead, that 9.762 g of a volatile solute is dissolved in 175.0 g of water.This solute also does not react with water nor dissociate in solution.The pure solute displays, at 25°C, a vapour pressure of 2.376 torr.Again, assume an ideal solution.If, at 25°C the vapour pressure of this solution is also 23.405 torr.Calculate the molar mass of this volatile solute. answer: 48.81 g/mol -- wrong Hint: Note that the calculation is greatly simplified if you…
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