Electrochemistry

Section: Chemistry

Question : 14 of 30

Marks: +1, -0

For the electrochemical cell,

Mg(s)|Mg2+(aq,1M)||Cu2+(aq,1M)|Cu(s)

the standard emf of the cell is 2.70 V at 300 K. When the concentration of Mg2+ is changed to x M, the cell potential changes to 2.67 V at 300 K. The value of x is _____ .
(given,

=11500KV−1,) where F is the Faraday constant and R is the gas constant, ln(10)=2.30

[JEE Adv 2018 P1]

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