7th Edition 6N.9

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Gillian Ward 1F
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Joined: Fri Sep 28, 2018 12:27 am

7th Edition 6N.9

Postby Gillian Ward 1F » Fri Mar 15, 2019 9:14 pm

A tin electrode in 0.015M Sn(NO3)2(aq) is connected to a hydrogen electrode in which the pressure of H2 is 1.0 bar. If the cell potential is 0.061 V at 25 degrees Celsius, what is the pH of the electrolyte at the hydrogen electrode?

How do you set up the cell equation with the given information? I'm confused as to how they were able to get the products and reactants.

Posts: 54
Joined: Fri Sep 28, 2018 12:17 am

Re: 7th Edition 6N.9

Postby keyaluo4C » Sat Mar 16, 2019 4:44 pm

To find the pH you need to first find [H+].
To find the concentration of H+ use the equation:

Q in the equation is equal to
You would then solve for the concentration of H+ and then calculate pH.

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