Salt Bridge: Maintaining Charge Flow in External Circuits

AI Thread Summary
The discussion centers on the role of the salt bridge in electrochemical cells, specifically its function in maintaining charge neutrality. It is acknowledged that while the salt bridge prevents the accumulation of positive and negative charges in the half-cells, there may still be some electron flow initially, before significant charge buildup occurs. The conversation also touches on the importance of understanding the dynamics of charge accumulation and the forces at play, suggesting that calculations related to charge and potential changes could provide deeper insights. The tone of the discussion reflects a misunderstanding about the nature of the inquiry, with participants debating whether the question is a conceptual doubt or a homework problem.
gracy
Messages
2,486
Reaction score
83


Without the salt bridge then there is no flow of charge and there are no electrons flowing in the external circuit.?HOW?i know function of salt bridge is only to maintain neutrality i.e if salt bridge is not there there will be accumulation of positive charge in one half cell and negative charge in another half cell and this will prevent further flow of electron but till the +ive and -ive charges are not accumulated ,AS IT TAKES TIME electrons will flow SO THERE WILL BE FLOW OF ELECTRON EVEN WITHOUT SALT BRIDGE TO SOME EXTENT i.e UNTIL CHARGES DO NOT START ACCUMULATION RIGHT?
 
Chemistry news on Phys.org
gracy said:
Without the salt bridge then there is no flow of charge and there are no electrons flowing in the external circuit.?HOW?i know function of salt bridge is only to maintain neutrality i.e if salt bridge is not there there will be accumulation of positive charge in one half cell and negative charge in another half cell and this will prevent further flow of electron but till the +ive and -ive charges are not accumulated ,AS IT TAKES TIME electrons will flow SO THERE WILL BE FLOW OF ELECTRON EVEN WITHOUT SALT BRIDGE TO SOME EXTENT i.e UNTIL CHARGES DO NOT START ACCUMULATION RIGHT?
No need to scream. Is this a homework problem?
 
Evo said:
No need to scream. Is this a homework problem?
i am not screaming at all i just wanted to emphasize it's importance.obviously it is not my homework problem it is conceptual doubt.
 
gracy said:
i am not screaming at all i just wanted to emphasize it's importance.obviously it is not my homework problem it is conceptual doubt.
Why do you think it should be obvious to anyone but you that this is not a homework problem?

When you bold a word or two here and there, it's emphasis. When you bold whole sentences, it's screaming.
 
Try to estimate how fast the charge accumulates. Try to calculate how fast the potential changes with charge accumulation (simplest way to do so would be to assume your system is just a capacitor). Try to calculate what forces are involved for accumulated charges.
 
phinds said:
Why do you think it should be obvious to anyone but you that this is not a homework problem?

When you bold a word or two here and there, it's emphasis. When you bold whole sentences, it's screaming.
sorry i also think it is not obvious that this is not a homework problem.
 

Thread 'Humidity of a saturated NaCl solution with anticaking additive'

I want to test a humidity sensor with one or more saturated salt solutions. The table salt that I have on hand contains one of two anticaking agents, calcium silicate or sodium aluminosilicate. Will the presence of either of these additives (or iodine for that matter) significantly affect the equilibrium humidity? I searched and all the how-to-do-it guides did not address this question. One research paper I found reported that at 1.5% w/w calcium silicate increased the deliquescent point by...
View full post »

Similar threads

At the atomic level, why is voltage added when batteries are connected in series?
Replies
2
Views
2K
Do we need salt bridges in Electrolytic cells?
Replies
3
Views
2K
Salt Bridge: Role in Half Cells Voltage
Replies
5
Views
13K
Rechargable galvanic cell?[remove the salt bridge}
Replies
1
Views
4K
The Initial Reaction of a Voltaic Cell
Replies
26
Views
4K
Why wouldn't half-reactions in a battery just go on?
Replies
3
Views
2K
Daniell cell initial equilibrium
Replies
2
Views
3K
Salt Bridge Questions: Will Zinc Affect Cell Potential?
Replies
3
Views
17K
How do voltaic cells generate ions without a salt bridge?
Replies
1
Views
4K
Electrochemists brain teaser-copper electrolysis
Replies
1
Views
3K

Hot Threads

Recent Insights

Back
Top