PLEASE HELP! DESPERATE!! CHEMISTRY!!!! easy question? - Freemason Hirams Travels Masonic Forums

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03-31-2008, 11:51 PM

pc1331

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PLEASE HELP! DESPERATE!! CHEMISTRY!!!! easy question?

Chemistry heat transfer?! please help!!?
ok so i can't figure out this problem!! ten points to the frist person to solve it w/ some work! please!!

An aluminum cup of mass 50g contains 200g of water at 20 degrees C. An equal amount (200g) of water at 40 degrees C is added to the cup and the system is allowed to reach equillibrium. what is the final temperature of the system?
(specific heat of aluminum = .22)
(specific heat of water = 1)

i usually can do these problems but i dont get where the whole aluminum cup fits into the whole thing! id really appreciate some help!! thanks!

Q=MCdT
heat= (mass) (specific heat) (change in temp)

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