The heat of fusion for napthalene (C₁₀H₈) is 18.98 kJ/mol and for sodium is 2.60 kJ/mol. The amount of heat that would melt 37.0 grams of napthalene would melt how many grams of sodium?

Question

Quizplus · Accepted Answer

First, we need to use the heat of fusion of napthalene to determine how much heat is required to melt 37.0 grams:

Heat required = (18.98 kJ/mol) × (37.0 g) / (128.17 g/mol) = 5.48 kJ

Next, we can use the amount of heat required to melt 37.0 grams of sodium:

(5.48 kJ) / (2.60 kJ/mol) × (22.99 g/mol) = 48.4 g

Therefore, the answer is D: 48.4 g of sodium.

The Heat of Fusion for Napthalene (C10H8) Is 18

The Heat of Fusion for Napthalene (C₁₀H₈) Is 18