Electrostatic induction in Solutions?

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Induction can influence different chemical solutions, but the effects are minimal and not easily observable. For example, in hydrochloric acid (HCl), a negatively charged rod may attract H+ ions towards it. Similarly, in a neutral sodium chloride (NaCl) solution, Na+ ions could be drawn towards the negatively charged rod. However, the overall impact is limited. In the case of sodium hydroxide (NaOH), a positively charged rod would theoretically attract OH- ions, but again, the observable effects are negligible. The formation of a double layer at the interface between the charged rod and the solution effectively screens the electric field, meaning ions further from the surface experience little to no net force. This phenomenon requires precise electrochemical techniques to measure any slight increases in ion concentration near the charged object.
Phyzwizz
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I was wondering if induction can apply to different chemical solutions. Take HCl for example. If a negatively charged rod were placed against the beaker in which HCl was held, would the H+ ions be pulled towards the rod. Would the same outcome appear in a neutral solution of NaCl (drawing the Na+ towards the negatively charged rod). Could a positively charged rod induce NaOH, drawing the OH- ions towards it?
 
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In general - no. There will be some very small increase in amount of ions on the phase boundary closest to the rod, measurable with a very precise electrochemistry techniques but nothing easy to observe using different methods..
 
Awesome, thanks.
 
Phyzwizz said:
I was wondering if induction can apply to different chemical solutions. Take HCl for example. If a negatively charged rod were placed against the beaker in which HCl was held, would the H+ ions be pulled towards the rod. Would the same outcome appear in a neutral solution of NaCl (drawing the Na+ towards the negatively charged rod). Could a positively charged rod induce NaOH, drawing the OH- ions towards it?

So called double layer forms at the interface, effectively screening the field of the charged body so ions further in the solution will feel virtually no net force.

http://en.wikipedia.org/wiki/Double_layer_(interfacial )
 
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