Problem: You construct of voltaic cell with standard concentrations of solutions using Cu(NO 3)2 and a Cu electrode as well as AgNO3 and a Ag electrode. After the cell has been operating for some time you find that the mass of the cathode has increased by 1 g. How much has the mass of the anode changed?A. it is 0.29 g less.B. it is 0.29 g more.C. it is 1 g less.D. it is 0.58 g more.E. it is 3.39 g less.F. the anode mass is unchanged

FREE Expert Solution

We're being asked to determine the change in the mass of the anode.

It is mentioned that the cell is a voltaic cell. For this to be a voltaic cell:

↓ E° → oxidation → anode

Loss Electrons → Oxidation

↑ E° → reduction → cathode

Gain Electrons → Reduction


Cu(NO3)2 and AgNO3 are both ionic compounds and will break up in the solution:

Cu(NO3)2(aq)Cu2+(aq) + 2 NO3(aq)

AgNO3(aq)Ag+(aq) + NO3(aq)


Refer to the standard reduction potential table:

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Problem Details

You construct of voltaic cell with standard concentrations of solutions using Cu(NO 3)2 and a Cu electrode as well as AgNO3 and a Ag electrode. After the cell has been operating for some time you find that the mass of the cathode has increased by 1 g. How much has the mass of the anode changed?

A. it is 0.29 g less.

B. it is 0.29 g more.

C. it is 1 g less.

D. it is 0.58 g more.

E. it is 3.39 g less.

F. the anode mass is unchanged

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