HW Ch. 8 #25

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Elias Ruben 1O
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HW Ch. 8 #25

Postby Elias Ruben 1O » Sat Jan 28, 2017 10:57 pm

How would you approach this problem? I don't understand how the first and second reactions described are connected

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Joined: Sat Jul 09, 2016 3:00 am

Re: HW Ch. 8 #25

Postby Emily_Lenh2A » Mon Jan 30, 2017 4:13 pm

You're supposed to use the first reaction described in order to find the heat capacity of the calorimeter (divide 3.50 kJ by 7.32 C). Using qsystem= -qsurroundings, you can find the change in internal energy of the neutralization reaction by having the change in internal energy equal to qsystem and the calorimeter equal to qsurroundings. When you plug in the heat capacity of the calorimeter and the change in temperature from the second reaction, you find how much heat has been released from the reaction. Hope this helps!

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