# Problem: For the following electrochemical cell: Cu(s)/Cu2+(aq, 0.0155 M)//Ag+(aq, 2.50 M)/Ag(s)write the net cell equation. Phases are optional. Do not include the concentrations. Calculate the following values at 25.0 degrees C using standard potentials as needed: Eknot cell (V), Delta Gknot reaction (kJ/mol), E cell (V), Delta G reaction (kJ/mol).Ok so this is a question on my sapling homework and I entered:Cu + 2Ag+ -&gt; Cu2+ +2Ag (correct)Eknot cell = Eknot red + Eknot ox: (0.80) + (-0.34) = 0.46 V (correct)*Delta Gknot rxn = nFEknotcell: -2(96,485)(0.46) = -88766.2 J = -8877 kJ/mol (incorrect)Delta G rxn = Delta Gknot rxn + RTln(Q): -88.77 + (8.3145 x 10-3)(298)[ln(0.155/(2.50)2)] = -103.69 kJ/mol (correct)*E cell = (-Delta G rxn)/(nF): (-103.690)/[(2)(96485)] = 0.54 V or 0.5 V (incorrect)

###### FREE Expert Solution

Part A

If a balanced reaction equation is not given you can determine the anode and cathode by comparing their E° values.

oxidation anode

reduction cathode

Half-reactions:

Cu2+ (aq) + 2 e- → Cu (s)        E° = 0.34 V         oxidation anode

Ag(aq) + e- → Ag (s)             E° = 0.80 V         reduction cathode

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###### Problem Details

For the following electrochemical cell: Cu(s)/Cu2+(aq, 0.0155 M)//Ag+(aq, 2.50 M)/Ag(s)

write the net cell equation. Phases are optional. Do not include the concentrations. Calculate the following values at 25.0 degrees C using standard potentials as needed: Eknot cell (V), Delta Gknot reaction (kJ/mol), E cell (V), Delta G reaction (kJ/mol).

Ok so this is a question on my sapling homework and I entered:

Cu + 2Ag+ -> Cu2+ +2Ag (correct)

Eknot cell = Eknot red + Eknot ox: (0.80) + (-0.34) = 0.46 V (correct)

*Delta Gknot rxn = nFEknotcell: -2(96,485)(0.46) = -88766.2 J = -8877 kJ/mol (incorrect)

Delta G rxn = Delta Gknot rxn + RTln(Q): -88.77 + (8.3145 x 10-3)(298)[ln(0.155/(2.50)2)] = -103.69 kJ/mol (correct)

*E cell = (-Delta G rxn)/(nF): (-103.690)/[(2)(96485)] = 0.54 V or 0.5 V (incorrect)

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Cell Potential concept. If you need more Cell Potential practice, you can also practice Cell Potential practice problems.