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Author Topic: Chemistry Practical PAPER DOUBT =)  (Read 640 times)

Offline thecandydoll

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Chemistry Practical PAPER DOUBT =)
« on: May 27, 2010, 03:05:19 am »
I have a doubt in practical paper June 2008 32.
Q1..it says to calculate enthalpy of reaction.
HOW?
i know its mcdeltat
but masss of what?
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Offline thecandydoll

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Re: Chemistry Practical PAPER DOUBT =)
« Reply #1 on: May 27, 2010, 04:36:58 am »
Yes thank you very much for your answerrs =(
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nid404

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Re: Chemistry Practical PAPER DOUBT =)
« Reply #2 on: May 27, 2010, 07:10:53 am »
sorry i guess im late. You use the mass of the solution.

Basically density of the solution would be 1g/cm3  so 1g=1cm3  So you see the volume of the liquid used...that's the mass ;)
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Offline Ykov

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Re: Chemistry Practical PAPER DOUBT =)
« Reply #3 on: May 27, 2010, 02:35:39 pm »
Please Note: If they give you mass of the solid, ignore it completely please and just use the mass of the solution
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