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Old Oct 17th 2018, 01:06 PM   #1
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Join Date: Oct 2018
Location: calgary
Posts: 3
emma10167 is on a distinguished road
Three weeks ago, we lost our chemistry thirty teacher. Our new teacher is not extreme

We were hoping to find help with this question:

What is the final temperature of water if 2.10 grams of methane is burned (molar enthalpy change -802.5kJ/mol) to heat up 400grams of water that is initially at 22.0 degrees celsius?

Earlier in our notes it says while using n(delta)Hm = mc(delta)t, we should use either joules/grams OR kilojoules/kilograms.

In the question, our teacher used 802.5 kJ with 400 grams. We are confused, please help us find the answer.

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