The vapor pressure of water at 25oC is 23.76 mmHg. What is the vapor pressure of a solution prepared by dissolving 0.300 mol of sucrose into 12.0 mol water?
mole fraction of water,
X = mol of water / total moles
= 12.0 / (12.0 + 0.300)
= 0.976
Nosw use:
P = Po*X
= 23.76 mmHg * 0.976
= 23.2 mmHg
Answer: 23.2 mmHg
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