electrochemistry, need answers asap, thank you 2 /s/ A concentralion voltaic cel

Question

electrochemistry, need answers asap, thank you

2 /s/ A concentralion voltaic cell is made with two silver-silver chloride electrodes based on the half CI- The compartments have ooi50 and 2.35 f respectively. Defend your response to each of the following questions. a. What is the standard cell potential of the cell? b. What is the cell tial at 25 C for the concentrations given? c which electrode is the cathode? d. For each electrode, predict whether [Cl l will increase, decrease, or stay the same.

Explanation / Answer

2.[8].

(a) The standard cell potential which measured at 1M , 1bar pressure ant 25oC temperature is zero.

(b) When the concentration are maintained different at the two sides of the cell, a potential will be generated.

E (cell) = E^0 - 0.059/1 ln [0.0150/2.55] = 0.303 V

(c) High concentrated side is cathode

(d) Cl- concentration will decrease in cathode and increase in anode

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