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May 29, 2015

Homework Help: Chemistry #27

Posted by Chelsea on Monday, October 28, 2013 at 8:51pm.

Given that:
H2 (g) + F2 (g) ---> 2HF (g) H(rxn)= -546.6 kJ
2H2 (g) + O2 (g) ---> 2H2O (l) H (rxn)= -571.6 kJ

calculate the value for H(run) for...
2F2(g) + 2H2O (l) ---> 4HF (g) + O2 (g)

_____kJ?

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