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)A. `5%`B. `6%`C. `7%`D. `8%`

Reactions involving gold have been of particular intrests to alchemist

1.	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)A. `5%`B. `6%`C. `7%`D. `8%`
Answer» Correct Answer - A

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