## Example on page 50 in Course Reader

$\Delta G^{\circ} = -nFE_{cell}^{\circ}$

Jasmine_Brownfield_3E
Posts: 9
Joined: Wed Sep 21, 2016 2:55 pm

### Example on page 50 in Course Reader

On page 50 of the course reader, the example of a gold ring being tested to dissolve in Nitric Acid is given.
"Will a gold ring dissolve in 1M Nitric Acid (HNO_3) to form a 1M Au(3+) solution?"

After finding the value of delta_G°(redox), how would you know that the gold does not dissolve in the nitric acid? What value would it need to be to dissolve?

delta_G°(redox) = +1.56 x 10^5 J

Hao 1I
Posts: 26
Joined: Wed Sep 21, 2016 3:00 pm
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### Re: Example on page 50 in Course Reader

Gold will not dissolve when delta G is positive because it will be a non-spontaneous process.