An electrochemical cell is set up to measure $$\(E^{\ominus}\)$$ of the $$\(\mathrm{Ag}^{+}(\mathrm{aq}) / \mathrm{Ag}(\mathrm{s})\)$$ electrode. Draw a labelled diagram of this electrochemical cell. Include all necessary substances. It is not necessary to state conditions used. (ii) A separate electrochemical cell is set up using a lower concentration of $$\(\mathrm{Ag}^{+}(\mathrm{aq})\)$$ than that used in (b)(i). Suggest how the electrode potential, $$\(E\)$$, for the $$\(\mathrm{Ag}^{+}(\mathrm{aq}) / \mathrm{Ag}(\mathrm{s})\)$$ electrode would change from its $$\(E^{\ominus}\)$$ value. Explain your answer. ....................................................................................................................................... . ....................................................................................................................................... . .................................................................................................................................
Exam No:9701_s24_qp_41 Year:2024 Question No:4(b)
Answer:

Knowledge points:
24.1.1 predict the identities of substances liberated during electrolysis from the state of electrolyte (molten or aqueous), position in the redox series (electrode potential) and concentration
24.1.2 state and apply the relationship F = Le between the Faraday constant, F, the Avogadro constant, L, and the charge on the electron, e
24.1.3.1 the quantity of charge passed during electrolysis, using Q = It
24.1.3.2 the mass and/or volume of substance liberated during electrolysis
24.1.4 describe the determination of a value of the Avogadro constant by an electrolytic method
Solution:
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