A voltaic cell consists of an Al/Al3+ half-cell and a Cd/Cd2+
half-cell. Calculate Ecell when [Cd2+]...
A voltaic cell consists of an Al/Al3+ half-cell and a Cd/Cd2+
half-cell. Calculate Ecell when [Cd2+] = 0.00303 M and [Al3+] =
0.47 M. You should use the reduction potentials for Al3+ is -1.66 V
and for Cd2+ is -0.40 V.
A voltaic cell consists of Cu²⁺/Cu and Cd²⁺/Cd half-cells. Each
compartment has a volume of 0.500 L with the following initial
concentrations: [Cu²⁺] = 1.250 M; [Cd²⁺] = 0.250 M at 25°C. What is
the [Cu²⁺] when the voltage has dropped to 0.719 V? (E⁰ for Cu²⁺/Cu
= 0.340 V and E⁰ for Cd²⁺/Cd = -0.400 V.)
A standard galvanic cell is constructed in which a
Cd2+ | Cd half cell
acts as the cathode. Which of the following
statements are correct?
Hint: Refer to a table of standard reduction potentials.
(Choose all that apply.)
1. The anode compartment could be
F2|F-.
2. The anode reaction could be Cr -> Cr3+ +
3e-
3. Cd2+ is reduced at the cathode.
4. As the cell runs, anions will migrate from the
Cd2+|Cd compartment to the other compartment.
5....
A voltaic cell consists of a Pb/Pb2+ half cell and a
Cu/Cu2+ half cell at 25C. The initial
concentrations of Pb2+ and Cu2+ are 0.0520 M
and 0.150 M respectively.
Part A: What is the initial cell potential
*Write answer using two significant figures
Part B: What is the cell potential when the concentration of
Cu2+ has fallen to 0.210 M
*Write answer using three significant figures
Part C: What is the concentration of Pb2+ when the
cell potential falls...
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 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 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 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 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 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 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?