Including Inert Electrodes

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Including Inert Electrodes

Postby AKhanna_3H » Tue Mar 03, 2020 6:35 pm

When do we include these in a cell diagram?

Tiffany Chao 2H
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Re: Including Inert Electrodes

Postby Tiffany Chao 2H » Tue Mar 03, 2020 7:17 pm

When you have ions (which are aqueous). We can't have an electrode that aqueous so we can use an inert metal solid such as platinum or graphite.
For example, if you have Fe 2+ and Fe, you can have Fe (s) to be the electrode. But if you have Fe 2+ and Fe 3+, you need platinum. There's no difference between using platinum or graphite.

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Re: Including Inert Electrodes

Postby 205291012 » Tue Mar 03, 2020 10:47 pm

Use inert electrodes when both the oxidized and reduced species are in the same solution. Also, use inert electrode when there are gas/ion reactions like in 6L.5 (c).

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