November 25, 2015

Homework Help: AP Chemistry

Posted by Anonymous on Sunday, September 27, 2009 at 4:31pm.

C2H2(g) + 2H2(g) --> C2H6(g)

Information about the substances involved in the reaction represented above is summarized in the following table:

C2H2(g) 226.7 kj/mol
C2H6(g) -84.7 kj/mol
[the values are the change in enthalpy]

a. write the equation for the heat formation of C2H6.
b. Use the above information to determine the enthalpy of reaction for the equation given.


A, for some reason, is throwing me off. I don't know what it's asking. Help?


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