The heat required to melt 22.9 g of solid diethyl ether (at its melting point) having a heat of fusion of 7.27 KJ/mol is 2246.43 J
How to determine the mole of diethyl ether
- Mass of diethyl ether = 22.9 g
- Molar mass of diethyl ether = 74.12 g/mol
- Mole of diethyl ether =?
Mole = mass / molar mass
Mole of diethyl ether = 22.9 / 74.12
Mole of diethyl ether = 0.309 mole
How to determine the heat
- Mole of diethyl ether = 0.309 mole
- Heat of fusion (ΔHf) = 7.27 KJ/mol
Q = n × ΔHf
Q = 0.309 × 7.27
Q = 2.24643 KJ
Q = 2.24643 × 1000
Q = 2246.43 J
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