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Tea Calculate the approximate final temperature of water in a coffee cup calorimeter if 35:9 stor heat is added to 420.0 g of
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Answer #1

Given:

Q = 33.9 KJ = 33900 J

m = 420 g

C = 4.184 J/g.oC

Ti = 22.6 oC

use:

Q = m*C*(Tf-Ti)

33900 = 420.0*4.184*(Tf-22.6)

Tf -22.6 = 19.29 oC

Tf = 41.89 oC

Answer: 41.89 oC

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