#8 | Problem Set 2 on Nernst Equation
(Chemistry) > Electrochemistry
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Which will increase the voltage of the cell

           Sn(s) + 2Ag+(aq)           Sn2+(aq) + 2Ag(s) ?

(a) Increase in size of the silver rod

(b) Increase in the concentration of Sn2+ ions

(c) Increase in the concentration of Ag+ ions

(d) None of the above

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Which graph correctly correlates Ecell as a function of concentrations for the cell (for different values of M and M') ?

Zn(s) + Cu2+(M)           Zn2+(M') + Cu(s);                           Ecell = 1.10 VX-axis : log10Zn2+Cu2+, Y-axis : Ecell 

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By how much will the potential of half cell Cu2+|Cu change if the solution is diluted to 100 times at 298 K.

(1) Increases by 59 mV

(2) Decreases by 59 mV 

(3) Increases by 29.5 mV

(4) Decreases by 29.5 mV

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The reduction potential of Hydrogen electrode is -118mV then the concentration of Hion in solution will be :-

(1) 10-4M

(2) 2M

(3) 0.01M

(4) 10-3M

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ENi+2Ni0 = -0.25 V, EAu+3Au0 = 1.50 V

the emf of Voltaic cell

Ni | Ni+2(1M) || Au+3(1M) Au is:-

(1) 1.25 V

(2) -1.75 V

(3) 1.75 V

(4) 4 V

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