Explanation of This Diagram

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Michelle N - 2C
Posts: 117
Joined: Wed Sep 18, 2019 12:19 am

Explanation of This Diagram

Postby Michelle N - 2C » Fri Feb 21, 2020 11:47 pm

Can someone provide a general explanation of this graph? This was shown on Wednesday at the beginning of the lecture, and then a variation of this diagram was drawn today, and I'm just trying to understand the concept of this. Thank you in advance!

Tyler Angtuaco 1G
Posts: 130
Joined: Wed Sep 11, 2019 12:16 am

Re: Explanation of This Diagram

Postby Tyler Angtuaco 1G » Sat Feb 22, 2020 12:23 pm

Experiments on redox reactions usually involve the components presented in the picture you uploaded: two electrodes connected by a circuit and a salt bridge. The electrode on the left is usually the anode (electrode that includes the species being oxidized/losing electrons) and the electrode on the right is the cathode (electrode that includes the species being reduced/gaining electrons). It is arranged in this manner because the galvanic cell does work to produce a positive voltage (E naught greater than zero). The salt bridge neutralizes both solutions by allowing the negative ions of the salt to balance the increasing positive charge of the anode and allowing the positive ions of the salt to balance the increasing negative charge of the cathode. This prevents the reaction from reaching equilibrium quickly.

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