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Topic: calorimetry and hess's law  (Read 2351 times)

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Offline roncarlston

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calorimetry and hess's law
« on: March 23, 2011, 12:29:51 PM »
I just finished a lab on calorimetry and enthalpy. everything went fine, all my calculations are good and our recorded data was checked off by the instructor. there's one question at the end that is confusing me... it sais "write a sentence or two describing whether or not this experiement supports hess's law"


i don't know exactly what they want me to write here. i mean we USED hess's law in a calculation at the very end to combine two reactions and prove that they equalled a third one. on one of our reactions the theoretical change in temperature was WAY different than the experimental...not sure what information you guys need to help me here, maybe i'm over complicating the question?


Offline opti384

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Re: calorimetry and hess's law
« Reply #1 on: March 23, 2011, 01:17:46 PM »
Quote
i mean we USED Hess's law in a calculation at the very end to combine two reactions and prove that they equalled a third one


Doesn't this prove Hess's Law?

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