Multiple Choice
Calculate the mass of lactose, C12H22O11, contained in 500.0 mL of solution if the measured vapour pressure of the solution is 121.2 mbar at 50 °C. The vapour pressure of pure water at 50 °C is 123.3 mbar; assume no change in volume occurs upon dissolution.
A) 118 g
B) 165 g
C) 239 g
D) 94.6 g
E) 280 g
Correct Answer:
Verified
Correct Answer:
Verified
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