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August 2, 2015

Homework Help: Chem Urgent Help

Posted by Sarah on Wednesday, November 12, 2008 at 10:18pm.

Plz explain in detail....

i tried to search on internet but i am confused with co-efficents.. how to set up the equaiton .. plz help me ???



Bond enthalpy is the energy required to break a mole of a certain type of bond.

O=O = 495 kj/mol
S-F = 327 kj/mol
S=O = 523 kj/mol


Use average bond enthalpies to estimate the enthalpy delta H (rxn) of the following reaction:

2SF4 + O2 ---- 2OSF4

Express your answer numerically in kilojoules.

Thanks in Advance

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