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Reactions involving gold have been of pa...

Reactions involving gold have been of particular intrests to alchemists. Consider the following reactions ,
`Au(OH)_(3)+4HCl toHAuCl_(4)+3H_(2)O`,
`" "DeltaH=-28kcal`
`Au(OH)_(3)+4HBr toHAuBr_(4)+3H_(2)O`
`" "DeltaH=-36.8kcal`
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 `HAuBr_(4)` converted into `HAuCl_(4)` : (percentage conversion)

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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)

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