Textbook Example 6L.2

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Textbook Example 6L.2

Postby JamieVu_2C » Sun Feb 23, 2020 1:16 am

Write the reaction for the cell Pt(s)|H2(g)|HCl(aq)|Hg2Cl2(s)|Hg(l).

The textbook example shows that the reduction half reaction is
and that the oxidation half reaction is .

Why isn't Cl included in the oxidation half reaction for H2 but included in the reduction half reaction for Hg2Cl2?

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Re: Textbook Example 6L.2

Postby KDang_1D » Sun Feb 23, 2020 12:52 pm

I believe it is in included in the Hg2Cl2 half-reaction since it's part of the solid and relevant to Hg's chemical change. For the H half-reaction, the Cl- is completely dissociated from HCl and therefore is not affecting the H reaction.

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