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vanbu vanbu
wrote...
Posts: 155
10 years ago
I have a question in my Chemistry textbook I can't seem to solve.  Neutral Face

I know that heat of formation= delta H= sum of bonds broken minus sum of bonds formed.

Can you help? 

The standard enthalpies of formation for S (g), F (g), SF4 (g), and SF6 (g) are +278.8, +79.0, -775, and -1209 kJ per mole, respectively. What is the energy of the S--F bond WITHOUT using the dissociation energy bond chart. (Step by step proof is needed)

Thank you!
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Replies
wrote...
10 years ago
just add up each side
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