What Is the Boiling Point of a Solution of Ethanol

question 160

Multiple Choice

What is the boiling point of a solution of ethanol that contains 4.9 grams of vanillin in 47.0 grams of ethanol?
Molar Mass(vanillin) = 152.14 g/mol; K_b(ethanol) = 1.22 ° C/ m ; bp(ethanol) = 78.5 ° C.

• A) T_{b, solution} = 76.7 ° C
• B) T_{b, solution} = 77.7 ° C
• C) T_{b, solution} = 78.6 ° C
• D) T_{b, solution} = 79.3 ° C
• E) T_{b, solution} = 79.9 ° C

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