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Using the Standard Enthalpies of Formation, ΔH°f: Calculate How

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Using the standard enthalpies of formation, ΔH°f: Using the standard enthalpies of formation, ΔH°<sub>f</sub>: calculate how much energy would be given off when 104.4 g of B<sub>5</sub>H<sub>9</sub>(s)burns in an oxygen environment to produce B<sub>2</sub>O<sub>3</sub>(s)and H<sub>2</sub>O(g).Hint: Write out the combustion equation and balance it. calculate how much energy would be given off when 104.4 g of B5H9(s)burns in an oxygen environment to produce B2O3(s)and H2O(g).Hint: Write out the combustion equation and balance it.

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