A solution contains a mixture of substance A and substance B, both of which are volatile. The
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A solution contains a mixture of substance A and substance B, both of which are volatile. The mole fraction of substance A is 0.35. At 32 °C the vapor pressure of pure A is 87 mmHg, and the vapor pressure of pure B is 122 mmHg. What is the total vapor pressure of the solution at this temperature?
a) 110 mmHg
b) 209 mmHg
c) 99.3 mmHg
d) 73.2 mmHg
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