All Questions
Tagged with electrons electrochemistry
9
questions
57
votes
4
answers
385k
views
Why is it important to use a salt bridge in a voltaic cell? Can a wire be used?
I was learning about voltaic cells and came across salt bridges. If the purpose of the salt bridge is only to move electrons from an electrolyte solution to the other, then why can I not use a wire?
...
- 799
37
votes
5
answers
20k
views
Why don't the electrons move through the electrolyte (instead of the circuit) in a galvanic cell?
I was learning about galvanic cells and I had a problem understanding why electrons do not travel through the electrolyte solutions themselves, instead preferring to travel through metals. Can ...
- 483
12
votes
6
answers
592
views
Is there any electronic component to water conductivity?
Answers to Decrease in temperature of a aqueous salt solution decreases conductivity indicate that the electrical conductivity of salt solutions arises from the mobility of ionic species and therefore ...
- 5,900
10
votes
3
answers
13k
views
Why is chloride oxidised instead of water in copper chloride electrolysis?
For the Electrolysis of Copper Chloride:
Cathode: $\ce{Cu^{2+} + 2e- <=> Cu}$
Anode: $\ce{2Cl <=> Cl2 + 2e- }$
I am confused about the reaction taking place at the anode. Wouldn't $\ce{...
- 231
5
votes
2
answers
22k
views
Explanation for the reactions in a saltwater battery with zinc and copper electrodes
I am a physicist, not a chemist. I'm trying to get a basic understanding of the reactions taking place in a battery using a saltwater electrolyte with copper and zinc terminals. I'm writing a general ...
- 151
15
votes
7
answers
111k
views
Which is anode and which is cathode?
A maybe (hopefully) simple question about the denotations of "anode" and "cathode". The below image is a schematic of a polymer solar cell (Source (WBM)). (The figure text is quoted as well for the ...
- 930
9
votes
1
answer
283
views
Fundamentals of Li-ion Functionality
I would like to have an in-depth understanding of Li-ion batteries functionality, at atomic level. Can anyone help me to understand it? I have included some known background to support my questions.
...
- 944
3
votes
1
answer
2k
views
Electrode potentials at interfaces?
My questions relates to the fundamental concept of electrochemistry, more specifically the electrode potentials.
1) First, why is there a potential difference at the interface of two phases? ...
- 6,795
2
votes
2
answers
2k
views
Why does copper form bubbles in vinegar in this situation?
I watched this video in which the host tries to show the principles behind the voltaic pile.
The host first immersed zinc in vinegar and bubbles are observed forming around zinc. I've learned that ...
