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A Solution Is Prepared by Adding 40 55∘C55 ^ { \circ } \mathrm { C }

Question 134

Multiple Choice

A solution is prepared by adding 40.00 g of lactose (milk sugar) to 110.0 g of water at 55∘C55 ^ { \circ } \mathrm { C } The partial pressure of water above the solution is ________ Torr.The vapour pressure of pure water at 55 °C is 0.1553 bar.The MW of lactose is 342.3 g mol−1342.3 \mathrm {~g} \mathrm {~mol} ^ { - 1 }


A) 118.7
B) 8.268
C) 19.08
D) 2.188
E) 114.3

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