9.537 g of a non-volatile solute is dissolved in 220.0 g of water. The solute does...

9.537 g of a non-volatile solute is dissolved in 220.0 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 23.498 torr.
The vapour pressure of pure water at 25°C is 23.756 torr.
Calculate the molar mass of the solute (g/mol).

71.1 g/mol

Now suppose, instead, that 9.537 g of a volatile solute is dissolved in 220.0 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 23.498 torr.
Calculate the molar mass of this volatile solute.

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Expert Solution

queen_honey_blossom answered 4 weeks ago

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