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Reactions involving gold have been of pa...

Reactions involving gold have been of particular interest to alchemists. Consider the following reactions,
`Au(OH)_(3) + 4 HCl ""^(3)//""_(4)®HAuCl_(4) + 3 H_(2)O, DH = - 28 kcal Au(OH)_(3) + 4 HBr""^(3)//""_(4)®HAuBr_(4) + 3 H_(2)O`,
`DH = -36.8 kcal`
In an experiment there was an absorption of 0.44 kcal when one mole of `HAuBr_(4)` was mixed with 4 moles of HCl. Then the fraction of `HAuBr_(4)` converted into `HAuCl_(4)` (percentage conversion)

A

0.05

B

0.06

C

0.07

D

0.08

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