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chemistry/check please

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923.85 grams of gaseous ammonia condenses into liquid.How much energy was released?

answer: 1268.28852 = 1268 kj

  • chemistry/check please -

    When you post a problem like this you should tell us what you used for the heat vaporization. Not all sources give the same number. Using 23.25 kJ/mol I obtained 1263.5 kJ which I would round to 1264 kJ.

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