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Topic: A problem with Thermochemistry (Heat of Fusion of Ice)  (Read 5613 times)

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Offline Sekminara

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A problem with Thermochemistry (Heat of Fusion of Ice)
« on: November 16, 2009, 10:45:16 PM »
ok. In my chemistry class I was given two equation to work with when trying to obtain the heat of fusion of ice

they were:

Heat lost by calorimeter = -Ccal :delta:Tcal=heat to melt ice + heat to warm water from ice

and

heat gained (ice,water) = (mice)(sfusion)+(mice)(4.184)( :delta:Twater from ice)

( :delta:Tcal=Tfinal-Tinitial) and ( :delta:Twater form ice=Tfinal-Tice)

the data that i obtained was:

Ccal=876.3
Masswater=200
Masswater+ice=215.359
Massice=15.4
Temperature of Calorimeter before addition of ice=22.3
Temperature of ice=0.3
Temperature of Calorimeter after addition and melting of ice=14.1

So far i cant make heads nor tails of the equations given to me. I have some basic information down such as the  :delta:Tcal=-8.2 but i'm unsure of some of my other calculations such as the Heat lost by calorimeter (i got 7186). Even with the basic information I have no idea how i'm suppose to use these two equations to find the  heat of fusion. Does anyone know whats going on here? I'm completely confused.
« Last Edit: November 16, 2009, 11:20:59 PM by Sekminara »

Offline Borek

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Re: A problem with Thermochemistry (Heat of Fusion of Ice)
« Reply #1 on: November 17, 2009, 02:42:08 AM »
heat gained = heat lost
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