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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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biostudent123 biostudent123
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10 years ago
How much energy (in kilojoules) is needed to heat 4.30g of ice from -12.5∘C to 31.5∘C? The heat of fusion of water is 6.01kJ/mol, and the molar heat capacity is 36.6 J/(K⋅mol) for ice and 75.3 J/(K⋅mol) for liquid water.

I used the equation  q= Moles x delta*H(fusion)   

But i'am stuck.
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Doctor-2-BDoctor-2-B
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10 years ago
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biostudent123 Author
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#2
10 years ago
Thank you very much, i converted it into kj
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#3
10 years ago
Thank you!
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10 years ago
You're very welcome.  Was it correct?  Thermo's not my strongest area.
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biostudent123 Author
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#5
10 years ago
Yes it was correct, i just had to change the final answer to KJ from Joules.
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10 years ago
Sweet!
Pretty fly for a SciGuy
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