# chemistry

How much energy is released when 2.55kg of diethyl ether freezes?

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1. You need the latent heat of fusion. You may have been given it with the question.

http://en.wikipedia.org/wiki/Diethyl_ether_(data_page)

has 7.19 kJ mol-1

so calculate the number of moles of diethyl ether relative molecular mass = 74.14

then multiply the number of moles by the latent heat of fusion.

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posted by Dr Russ
2. 533.0666 kj

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posted by dave
3. How much energy is released when 1.9 kg of diethyl ether freezes? In kj

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posted by Jena

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