Question

In: Chemistry

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 Zn2+ when the cell potential falls to 0.45V ?

Thank you.

Solutions

Expert Solution

queen_honey_blossom answered 1 day ago
Next > < Previous

Related Solutions

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+ anode and a Ni/Ni2+ cathode at 25 ∘C. The...
A voltaic cell consists of a Zn/Zn2+ anode and a Ni/Ni2+ cathode at 25 ∘C. The initial concentrations of Ni2+ and Zn2+ are 1.7 M and 0.12 M , respectively. The volume of half-cells is the same. What is the concentration of Ni2+ when the cell potential falls to 0.456 V ?    Enter your answer to 4 decimal places and in units of mM. Zn2+ (aq) + 2 e-  ⟶Zn(s) E° = -0.76 V Ni2+ (aq) + 2 e- ⟶  ...
23. A voltaic cell is constructed with Cr3+/Cr and Zn2+/Zn half-cells at 25 °C. a. If...
23. A voltaic cell is constructed with Cr3+/Cr and Zn2+/Zn half-cells at 25 °C. a. If the concentration of Zn2+ is 0.10 M, what concentration of Cr3+ should be used so that the overall cell potential is 0 V? b. What concentration of Cr3+ should you use to make the cell consume Zn (s)? c. What concentration of Cr3+ should you use to make the cell deposit Zn (s)?
A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 ∘C. The...
A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 ∘C. The initial concentrations of Pb2+ and Cu2+ are 5.30×10−2 M and 1.60 M , respectively. Part A What is the initial cell potential? Express your answer using two significant figures. Ecell= ? V Part B What is the cell potential when the concentration of Cu2+ has fallen to 0.230 M ? Express your answer using two significant figures. Part B What is the cell potential...
A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 ∘C. The...
A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 ∘C. The initial concentrations of Pb2+ and Cu2+ are 5.00×10−2 M and 1.70 M, respectively. What is the cell potential when the concentration of Cu2+ has fallen to 0.250 M ? What are the concentrations of Pb2+ and Cu2+ when the cell potential falls to 0.37 V?
A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 ∘C. The...
A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 ∘C. The initial concentrations of Pb2+ and Cu2+ are 0.0500 M and 1.50 M , respectively. Standard Reduction Half-Cell Potentials at 25 ∘C Half-Reaction E∘(V) Cu+(aq)+e−→Cu(s) 0.52 Cu2+(aq)+2e−→Cu(s) 0.34 Cu2+(aq)+e−→Cu+(aq) 0.16 Pb2+(aq)+2e−→Pb(s) −0.13 1. What is the initial cell potential? Express your answer using two decimal places. 2. What is the cell potential when the concentration of Cu2+ falls to 0.200 M ? Express your answer...
A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 ∘C. The...
A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 ∘C. The initial concentrations of Pb2+ and Cu2+ are 5.00×10−2 M and 1.50 M , respectively What is the initial cell potential? 0.51V What is the cell potential when the concentration of Cu2+ has fallen to 0.200 M ? 0.45V Part C What are the concentrations of Pb2+ and Cu2+ when the cell potential falls to 0.360 V ? I need help with Part C
A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 ∘C. The...
A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 ∘C. The initial concentrations of Pb2+ and Cu2+ are 5.20×10−2M and 1.50 M, respectively. A) What is the cell potential when the concentration of Cu2+ has fallen to 0.250 M ? B) What are the concentrations of Pb2+ and Cu2+ when the cell potential falls to 0.36 V?
A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 ?C. The...
A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 ?C. The initial concentrations of Pb2+ and Cu2+ are 5.30
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT