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Consider the Daniell Cell Where the Cell Reaction and Standard \rarr

Question 27

Multiple Choice

Consider the Daniell cell where the cell reaction and standard potential are:Zn(s) + Cu2+ (aq) \rarr Zn2+ (aq) + Cu (s) \quad E° = 1.10 VIf the cell is initially at standard conditions ([Cu2+] = [Zn2+] = 1.00 M) , what are the concentrations of Cu2+ and Zn2+ when the cell potential has fallen to 1.06 V?If needed, use the following equation: Δ\Delta G° = -nFE°, E°  Consider the Daniell cell where the cell reaction and standard potential are:Zn(s)  + Cu<sup>2+</sup><sup> </sup>(aq)   \rarr Zn<sup>2+</sup><sup> </sup>(aq)  + Cu (s)   \quad E° = 1.10 VIf the cell is initially at standard conditions ([Cu<sup>2+</sup>] = [Zn<sup>2+</sup>] = 1.00 M) , what are the concentrations of Cu<sup>2+</sup><sup> </sup>and Zn<sup>2+</sup> when the cell potential has fallen to 1.06 V?If needed, use the following equation: \Delta G° = -nFE°, E°   , E = E° -   , moles e<sup>-</sup> =   (If needed, refer to Table 17-1in the text)  A)  [Cu<sup>2+</sup>]= 8.5 x 10<sup>-2</sup> M; [Zn<sup>2+</sup>]=1.91 M B)  [Cu<sup>2+</sup>]= 0.94 M; [Zn<sup>2+</sup>]= 1.06 M C)  [Cu<sup>2+</sup>]= 1.91 M; [Zn<sup>2+</sup>]=8.5 x 10<sup>-2</sup> M D)  [Cu<sup>2+</sup>]= 0.50 M; [Zn<sup>2+</sup>]=1.50 M E)  [Cu<sup>2+</sup>]= 0.90 M; [Zn<sup>2+</sup>]=1.10 M , E = E° -  Consider the Daniell cell where the cell reaction and standard potential are:Zn(s)  + Cu<sup>2+</sup><sup> </sup>(aq)   \rarr Zn<sup>2+</sup><sup> </sup>(aq)  + Cu (s)   \quad E° = 1.10 VIf the cell is initially at standard conditions ([Cu<sup>2+</sup>] = [Zn<sup>2+</sup>] = 1.00 M) , what are the concentrations of Cu<sup>2+</sup><sup> </sup>and Zn<sup>2+</sup> when the cell potential has fallen to 1.06 V?If needed, use the following equation: \Delta G° = -nFE°, E°   , E = E° -   , moles e<sup>-</sup> =   (If needed, refer to Table 17-1in the text)  A)  [Cu<sup>2+</sup>]= 8.5 x 10<sup>-2</sup> M; [Zn<sup>2+</sup>]=1.91 M B)  [Cu<sup>2+</sup>]= 0.94 M; [Zn<sup>2+</sup>]= 1.06 M C)  [Cu<sup>2+</sup>]= 1.91 M; [Zn<sup>2+</sup>]=8.5 x 10<sup>-2</sup> M D)  [Cu<sup>2+</sup>]= 0.50 M; [Zn<sup>2+</sup>]=1.50 M E)  [Cu<sup>2+</sup>]= 0.90 M; [Zn<sup>2+</sup>]=1.10 M , moles e- =  Consider the Daniell cell where the cell reaction and standard potential are:Zn(s)  + Cu<sup>2+</sup><sup> </sup>(aq)   \rarr Zn<sup>2+</sup><sup> </sup>(aq)  + Cu (s)   \quad E° = 1.10 VIf the cell is initially at standard conditions ([Cu<sup>2+</sup>] = [Zn<sup>2+</sup>] = 1.00 M) , what are the concentrations of Cu<sup>2+</sup><sup> </sup>and Zn<sup>2+</sup> when the cell potential has fallen to 1.06 V?If needed, use the following equation: \Delta G° = -nFE°, E°   , E = E° -   , moles e<sup>-</sup> =   (If needed, refer to Table 17-1in the text)  A)  [Cu<sup>2+</sup>]= 8.5 x 10<sup>-2</sup> M; [Zn<sup>2+</sup>]=1.91 M B)  [Cu<sup>2+</sup>]= 0.94 M; [Zn<sup>2+</sup>]= 1.06 M C)  [Cu<sup>2+</sup>]= 1.91 M; [Zn<sup>2+</sup>]=8.5 x 10<sup>-2</sup> M D)  [Cu<sup>2+</sup>]= 0.50 M; [Zn<sup>2+</sup>]=1.50 M E)  [Cu<sup>2+</sup>]= 0.90 M; [Zn<sup>2+</sup>]=1.10 M (If needed, refer to Table 17-1in the text)


A) [Cu2+]= 8.5 x 10-2 M; [Zn2+]=1.91 M
B) [Cu2+]= 0.94 M; [Zn2+]= 1.06 M
C) [Cu2+]= 1.91 M; [Zn2+]=8.5 x 10-2 M
D) [Cu2+]= 0.50 M; [Zn2+]=1.50 M
E) [Cu2+]= 0.90 M; [Zn2+]=1.10 M

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