Answer to Question #118147 in General Chemistry for Abigail Rouse

Question

What is the boiling point of a 0.66 molal solution of sucrose (nonelectrolyte) in ethanol? (Kb of ethanol = 1.22 °C/m, normal boiling point of ethanol is 78.5 °C)

Answer 1

∆T_b=K_b*C_m=1.22*0.66=0.81 °C;

T_b(solution)=78.5 - ∆T_b=77.69 °C;

Answer: 77.69°C