Homework Help: Enthalpy Change?

Posted by JennyB on Friday, June 12, 2009 at 12:28am.

Given the thermochemical equation SO2(g) + ˝ O2(g) Ž SO3 (g) DH = -99.1 kJ
calculate the enthalpy change (DH) when 89.6 g of SO2 is converted to SO3

a. -69.3 kJ
b. -139 kJ
c. 69.3 kJ
d. 139 kJ
e. -111 kJ

Chemistry - Writeacher, Friday, June 12, 2009 at 11:16am
Assistance needed.
--------------------------
Raymonddd, AnthoniiEllis, Jenny B, Douglas, or whoever,

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