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November 23, 2014

Homework Help: college chemistry-thermochemistry

Posted by maryanne on Saturday, November 8, 2008 at 8:49pm.

A 1.50g sample of NH4NO3(s) is added to 35.0g of water in a foam cup and stirred intil it dissolves. The temperature of the solution drops from 22.7 to 19.4 degrees celcius. What is the heat of dissolution of NH4NO3, expressed in kJ/mol NH4NO3?

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