Homework Help: Chemistry II

Posted by Jayd on Sunday, May 20, 2007 at 7:35pm.

Calculate the change in heat:
2 Na(s) + 2 H2O(l) > 2 NaOH(aq) + H2(g)

So far this is what I have:
2 H20 --> 2 H2 + O2 2(285.83) kJ
2 Na + O2 + H2 --> 2 NaOH 2(-426.73) kJ

2 Na + 2 H2O --> 2 NaOH + H2 -281.8 kJ

If this correct??

yes, correct, as best as I can tell.

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