Cinnamaldehyde (? = 132.15 g/mol) is used as a flavoring agent. What mass of cinnamaldehyde must be added to 175 g of ethanol to give a solution whose boiling point is 82.7 C? Kb = 1.22 C/m, boiling point of pure ethanol = 78.5 C
A) 62.4 g
B) 67.8 g
C) 76.2 g
D) 78.5 g
E) 79.6 g
Correct Answer:
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