Question

In: Chemistry

A voltaic cell is constructed from an Ni2+(aq)−Ni(s) half-cell and an Ag+(aq)−Ag(s) half-cell. The initial concentration...

A voltaic cell is constructed from
an Ni2+(aq)−Ni(s) half-cell and
an Ag+(aq)−Ag(s) half-cell.
The initial concentration of Ni2+(aq) in the Ni2+−Ni half-cell is [Ni2+]= 1.80×10−2 M . The initial cell voltage is +1.12 V .

Part A

By using data in Table 20.1 in the textbook, calculate the standard emf of this voltaic cell.
E∘ =
V

SubmitMy AnswersGive Up

Part B

Will the concentration of Ni2+(aq) increase or decrease as the cell operates?

Will the concentration of increase or decrease as the cell operates?

will increase
will decrease

SubmitMy AnswersGive Up

Part C

What is the initial concentration of Ag+(aq) in the Ag+−Ag half-cell?

Express your answer using one significant figure.
[Ag+(aq)]i =

M

Solutions

Expert Solution

queen_honey_blossom answered 3 years ago
Next > < Previous

Related Solutions

A voltaic cell is constructed from an Ni2+(aq)−Ni(s) half-cell and an Ag+(aq)−Ag(s) half-cell.The initial concentration of...
A voltaic cell is constructed from an Ni2+(aq)−Ni(s) half-cell and an Ag+(aq)−Ag(s) half-cell.The initial concentration of Ni2+(aq) in the Ni2+−Ni half-cell is [Ni2+]= 1.80×10−2 M . The initial cell voltage is +1.13 V . 1. By using data in Table 20.1 in the textbook, calculate the standard emf of this voltaic cell.
A voltaic cell is constructed that uses the following reaction and operates at 298 K: Zn(s)+Ni2+(aq)→Zn2+(aq)+Ni(s)....
A voltaic cell is constructed that uses the following reaction and operates at 298 K: Zn(s)+Ni2+(aq)→Zn2+(aq)+Ni(s). a. What is the emf of this cell when [Ni2+]= 2.10 M and [Zn2+]= 0.160 M ? b. What is the emf of the cell when [Ni2+]= 0.100 M and [Zn2+]= 0.860 M ? Thanks!
A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 ∘C. The...
A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 ∘C. The initial concentrations of Ni2+ and Zn2+ are 1.30mol/L and 0.130 mol/L, respectively. Zn2+(aq)+2e−→Zn(s)E∘=−0.76V Ni2+(aq)+2e−→Ni(s)E∘=−0.23V What are the concentrations of Ni2+ and Zn2+ when the cell potential falls to 0.45 V? Express your answers using two significant figures separated by a comma.
A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 ∘C. The...
A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 ∘C. The initial concentrations of Ni2+ and Zn2+ are 1.50 M and 0.110 M , respectively. The volume of half-cells is the same. Part A What is the initial cell potential? Part B What is the cell potential when the concentration of Ni2+ has fallen to 0.600 M ? Part C What is the concentrations of Ni2+ when the cell potential falls to 0.46 V ?...
A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 ?C ....
A voltaic cell consists of a Zn/Zn2+ half-cell and a Ni/Ni2+ half-cell at 25 ?C . The initial concentrations of Ni2+ and Zn2+ are 1.80M and 0.110M , respectively. The volume of half-cells is the same. A.What is the initial cell potential?         B. What is the cell potential when the concentration of Ni2+ has fallen to 0.600M ?         C. What is the cell potential when the concentration of Ni2+ has fallen to 0.600M ?         D. What is the concentration of...
A rechargeable battery is constructed based on a concentration cell constructed of two Ag/Ag+ half-cells. The...
A rechargeable battery is constructed based on a concentration cell constructed of two Ag/Ag+ half-cells. The volume of each half-cell is 1.9 L and the concentrations of Ag+ in the half-cells are 1.20 M and 1.2×10−3M. Part A How long can this battery deliver 2.7 A current before it dies? Express your answer using two significant figures.
A rechargeable battery is constructed based on a concentration cell constructed of two Ag/Ag+ half-cells. The...
A rechargeable battery is constructed based on a concentration cell constructed of two Ag/Ag+ half-cells. The volume of each half-cell is 1.8 L and the concentrations of Ag+ in the half-cells are 1.35 M and 1.0×10−3 M . a) For how long can this battery deliver 2.8 A of current before it goes dead? b) What mass of silver is plated onto the cathode by running at 3.8 A for 5.7 h ? c) Upon recharging, how long would it...
A rechargeable battery is constructed based on a concentration cell constructed of two Ag/Ag+ half-cells. The...
A rechargeable battery is constructed based on a concentration cell constructed of two Ag/Ag+ half-cells. The volume of each half-cell is 2.2 L and the concentrations of Ag+ in the half-cells are 1.25 M and 1.2×10−3 M . At which half-cell does the concentration of Ag+ decrease as the cell is run? What is the initial concentration of Ag+ at that half-cell? At which half-cell does the concentration of Ag+ decrease as the cell is run? What is the initial...
A rechargeable battery is constructed based on a concentration cell constructed of two Ag/Ag+half-cells. The volume...
A rechargeable battery is constructed based on a concentration cell constructed of two Ag/Ag+half-cells. The volume of each half-cell is 1.9 L and the concentrations of Ag+ in the half-cells are 1.15 M and 1.3×10−3 M . 1)What is the concentration of Ag+ at the cathode after the cell is run at 3.6 A for 5.7 h ? Express your answer using two significant figures. 2)What is the concentration of Ag+ at the cathode when the cell is "dead"? 3)For...
Part A Calculate the equilibrium constant at 25 ∘C for the reaction Ni(s)+2Ag+(aq)→Ni2+(aq)+2Ag(s), if Ni2+(aq)+2e−→Ni(s), E∘...
Part A Calculate the equilibrium constant at 25 ∘C for the reaction Ni(s)+2Ag+(aq)→Ni2+(aq)+2Ag(s), if Ni2+(aq)+2e−→Ni(s), E∘ = -0.26 V, Al+(aq)+e−→Al(s), E∘ = 0.80 V Express your answer using one significant figure. Part B Calculate the equilibrium constant at 25 ∘C for the reaction Hg2+2(aq)→Hg(l)+Hg2+(aq) See Appendix D for standard reduction potentials. Express your answer using one significant figure.
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT