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To examine the effect of ion removal on cell voltage, a chemist constructs two voltaic cells, each with a standard hydrogen electrode in one compartment. One cell also contains a Pb/Pb²⁺ half-cell; the other contains a Cu/Cu²⁺ half-cell.(b) Which electrode in each cell is negative?

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tanisharawat014

Pb is the anode means negative electrode in Pb/Pb^2+ half cell and platinum is the negative electrode in Cu/Cu^2+ half cell .

Given that ,

There are two voltaic cells , each with a standard hydrogen electrode in one compartment .

One cell contains a Pb/Pb^2+ half-cell and the other contains a Cu/Cu^2+ half-cell .

In Pb/Pb^2+ half-cell , oxidation takes place at Pb .hence Pb is the negative electrode .similarly platinum in another cell is negative electrode .

What is hydrogen electrode ?

It is called as standard hydron electrode because its electrode potential is zero at a temperature of 298K .

Learn more about electrode potential here:

brainly.com/question/17362810

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