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OpenStudy (anonymous):
Calculate the number of moles in a liquid sample of a substance that has a molar heat of fusion of 3.811kj/mol, given that the sample releases 83.2kj when it freezes. Also give the molar mass of this substance if the mass is 5519 g Please help fast!!
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OpenStudy (wolfe8):
Hint: Look at the units. kJ and kJ/mol. You want mol. Hmmm :)
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