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(Note That Some of These Are the Same Problems as Found

Question 42

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(Note that some of these are the same problems as found in the section headed Enthalpies of Atom Combination. However in this section all problems are worked using Enthalpies of Formation.)
-The following reaction occurs when sucrose (cane sugar) is metabolized by the body.
C12H22O11(s) + 12 O2(g) →\rightarrow 12 CO2(g) + 11 H2O(l)
Given that Δ\Delta H ° for this reaction is -5645 kJ/molrxn, what is the value of Δ\Delta Hf ° for sucrose?
(Note that some of these are the same problems as found in the section headed Enthalpies of Atom Combination. However in this section all problems are worked using Enthalpies of Formation.) -The following reaction occurs when sucrose (cane sugar) is metabolized by the body. C<sub>12</sub>H<sub>22</sub>O<sub>11</sub>(s) + 12 O<sub>2</sub>(g) \rightarrow 12 CO<sub>2</sub>(g) + 11 H<sub>2</sub>O(l) Given that \Delta H ° <sub> </sub>for this reaction is -5645 kJ/mol<sub>rxn</sub>, what is the value of \Delta H<sub>f</sub> ° <sub> </sub> for sucrose?

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-2221 kJ/m...

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