A hypothetical electrochemical cell is shown below. $A\left| {{A^ + }\left( {xM} \right)} \right|\left| {{B^ + }\left( {yM} \right)} \right|B$ The emf measured is + 0.20 V. The cell reaction is

Question

A hypothetical electrochemical cell is shown below.

$A\left| {{A^ + }\left( {xM} \right)} \right|\left| {{B^ + }\left( {yM} \right)} \right|B$

The emf measured is + 0.20 V. The cell reaction is

A + B⁺ $ \to $ A⁺ + B

A⁺ + B $ \to $ A + B⁺

A⁺ + e^$-$ $ \to $ A; B⁺ + e^$-$ $ \to $ B

the cell reaction cannot be predicted.

Solution

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