Friday
April 18, 2014

Homework Help: Chemistry

Posted by justin on Tuesday, August 20, 2013 at 12:48pm.

hi this seems simple but i cant figure it out.

If a 0.46 kg hot copper pan lost 9.8x103
J of heat as it cooled down to 54C, what was its
original temperature?

I used the 24.44 j/molK for heat capacity, is not this one? found on wikipedia: copper

this is how i derive my equation...
-9.8x10^3=7.24mol(24.44j/molK)(327-x)

the answer is 77C but im getting 109.39C :( please help thanks

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - I cannot figure this out. It seems so simple, and I should know it. ...
grammar - i cant figure out simple subjects and simple predicates in a sentence
Chemistry - An 8.00 mass % aqueous solution of ammonia has a density of 0.9651g/...
English Grammar - ex) simple Simple is composed of two syllables: sim and ple. ...
Chemistry - Last one I promise! Thankyou for bearing with me. This seems simple ...
English - Read each sentence then write whether the sentence is simple or not ...
Chemistry - I've been working on this problem for hours and cant figure it out. ...
Math - I know this is simple arithmetic but i just cant seem to figure out the ...
Visual Basic 2008 Programming - Help! I'm not sure how to start or how calculate...
Chemistry - How do I figure out what ions are present in a compound? Is it as ...

Search
Members