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Grade 12Physical Chemistry

a cell was prepared by dipping copper rod in 1M cuso4 solution and a nickel rod in 1M niso4 solution the standard red.potential of copper and nickel electrode are 0.34 and -0.25respectively.
A.what will be the cell reaction
B.how will be the cell be represented
C.what will be the standard emf of the cell
D.which electrode wll be positive

Profile image of zeeshan
10 Years agoGrade 12
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1 Answer

Profile image of Umakant biswal
10 Years ago
@ zeesha 
1- the cell reaction will be as of the following 
Ni+cu(2+) = Ni(2+) +Cu 
2- the cell will be represented as per the iupac system and take the anode on the left hand side , and cathode on the right hand side , and put a double cross for the salt bridge , i think u can do from the above equation as well . 
and always put a single line for separating the ions from the solution . 
3- the standard emf will be +0.59 volt 
as by calculating the formula E(CATHODE ) – E(ANODE ) 
u can refer to the electrr=ochemical series for the e not value. 
the cathode will be possitive here as it will looses electron . 
”HOPE IT CLEARS YOUR DOUBT 
ALL THE BEST ..

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