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Postby 805132275 » Tue Feb 12, 2019 5:08 pm

I am having trouble understanding how to calculate the answer. Can someone explain?

Kelsey Warren 1I
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Postby Kelsey Warren 1I » Tue Feb 12, 2019 5:10 pm

Basically, you calculate the heat that was used to increase the temp of the 125g from -2.8C to 0C. Then, subtract that amount from the total energy and you'll have the amount of heat that was used to convert half the ice cream (62.5g) into liquid, so you divide that leftover heat by 62.5g to get the enthalpy of fusion.

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