Answer to Question #193053 in General Chemistry for Maddie Dalton

Question #193053

What is the heat required to melt 77.4 g of solid diethyl ether, (C2H5)2O, at its melting point? The ΔH° of fusion of diethyl ether is 7.66 kJ/mol. Use a molar mass with at least as many significant figures as the data given.

 Answer in kJ Units


1
Expert's answer
2021-05-17T04:17:47-0400

"Moles =\\frac{ 77.4 g }{74.14 g\/mol }= 1.044 mol"


"\u2206H\u00b0= 1.044 mol \u00d7 7.66 kJ\/mol = 7.997 kJ"


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