Homework Help: Chemistry

Posted by Hailee on Saturday, March 17, 2012 at 11:11am.

Reposted:
Use Hess's law to calculate the enthalpy change for the reaction:
3C(s) + 3H2(g) yield C3H6(g)

Given the following thermochemical equations:

2C3H6(g) + 9O2(g) yield 6CO2(g) + 6H2O(l) enthalpy change= -4116.0 kJ/mol

C(s) + O2(g) yield CO2(g) enthalpy change= -393.51 kJ/mol

H2(g) + 1/2O2(g) yield H2O(l) enthalpy change= -285.83 kJ/mol

Chemistry - Hailee, Saturday, March 17, 2012 at 1:18pm
never mind, i already figured it out :)

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