A voltaic cell is assembled under standard conditions based on the following reaction : Ni(s) +...

A voltaic cell is assembled under standard conditions based on the following reaction :

Ni(s) + 2 Ag+(aq) → Ni+2(aq) + 2 Ag(s)

Indicate which statements, if any, about this voltaic cell are true by checking the box in front of each true statment. -

The voltaic cell will always produce a positive potential. If the [Ni2+] is doubled while [Ag+] remains standard, the intial potential produced by the voltaic cell will double.

If the [Ag+] is doubled while [Ni+2] remains standard, the intial potential produced by the voltaic cell will double.

If [Ni2+] less than 1.0 M is used while [Ag+] remains standard , the initial potential will be greater than the standard potential for the voltaic cell.

If [Ag+] less than 1.0 M is used while [Ni+2] remains standard , the initial potential will be greater than the standard potential for the voltaic cell.

The potential produced by the voltaic cell may be affected by temperature.

The value of K for the voltaic cell reaction is greater than 1.

The value of K for the voltaic cell reaction is less than 1.

Solutions

Expert Solution

True statments :

The voltaic cell will always produce a positive potential

If [Ni2+] less than 1.0 M is used while [Ag+] remains standard , the initial potential will be greater than the standard potential for the voltaic cell.

The potential produced by the voltaic cell may be affected by temperature.

The value of K for the voltaic cell reaction is greater than 1.

false statements :

If the [Ni2+] is doubled while [Ag+] remains standard, the intial potential produced by the voltaic cell will double.

If the [Ag+] is doubled while [Ni+2] remains standard, the intial potential produced by the voltaic cell will double.

If [Ag+] less than 1.0 M is used while [Ni+2] remains standard , the initial potential will be greater than the standard potential for the voltaic cell.

The value of K for the voltaic cell reaction is less than 1.

queen_honey_blossom answered 1 year ago

Next > < Previous

Related Solutions

A voltaic cell based on the reaction below has an E°cell of +0.30 V. 2Cr(s) +...

A voltaic cell based on the reaction below has an E°cell of +0.30 V. 2Cr(s) + 3Fe2+(aq) à 2Cr3+(aq) + 3Fe(s) What is the Ecell at 264 K when [Cr3+] = 1.41 x 10-2 and [Fe2+] = 1.26 x 10-2 What is ΔG under these conditions? ΔG° = -135 kJ

Under standard conditions, Consider the following standard reduction potentials, Ni2+(aq) + 2 e- → Ni(s) E°...

Under standard conditions, Consider the following standard reduction potentials, Ni2+(aq) + 2 e- → Ni(s) E° = -0.26 V I2(s) + 2 e- → 2 I-(aq) E° = +0.54 V Under standard conditions, a)Ni2+(aq) is a stronger oxidizing agent than I2(s) and I-(aq) is a stronger reducing agent than Ni(s). b)I2(s) is a stronger oxidizing agent than Ni2+(aq) and Ni(s) is a stronger reducing agent than I-(aq). c)I-(aq) is a stronger oxidizing agent than Ni(s) and I2(s) is a stronger...

1. A voltaic cell is constructed that is based on the following reaction: Sn2+(aq)+Pb(s)→Sn(s)+Pb2+(aq). a. If...

1. A voltaic cell is constructed that is based on the following reaction: Sn2+(aq)+Pb(s)→Sn(s)+Pb2+(aq). a. If the concentration of Sn2+ in the cathode compartment is 1.50 M and the cell generates an emf of 0.22 V , what is the concentration of Pb2+ in the anode compartment? b. If the anode compartment contains [SO2−4]= 1.50 M in equilibrium with PbSO4(s), what is the Kspof PbSO4? 2. A voltaic cell is constructed with two silver-silver chloride electrodes, each of which is...

A voltaic cell is constructed that is based on the following reaction: Sn2+(aq)+Pb(s)→Sn(s)+Pb2+(aq). 1. If the...

A voltaic cell is constructed that is based on the following reaction: Sn2+(aq)+Pb(s)→Sn(s)+Pb2+(aq). 1. If the concentration of Sn2+ in the cathode compartment is 1.50 M and the cell generates an emf of 0.25 V , what is the concentration of Pb2+ in the anode compartment? 2.If the anode compartment contains [SO2−4]= 1.00 M in equilibrium with PbSO4(s), what is the Ksp of PbSO4?

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...

A voltaic cell is constructed that uses the following reaction and operates at 298 K. Zn(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 under standard conditions?______ V (b) What is the emf of this cell when [Ni2+] = 2.24 M and [Zn2+] = 0.112 M?_____ V (c) What is the emf of the cell when [Ni2+] = 0.298 M and [Zn2+] = 0.925 M?____ V

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...

Consider the following standard reduction potentials, For the voltaic cell reaction below, calculate the Fe2+ concentration...

Consider the following standard reduction potentials, For the voltaic cell reaction below, calculate the Fe2+ concentration that would be needed to produce a cell potential equal to 0.16 V at 25 oC when the pH of the solution is 13.00, [Fe3+] = 0.50 M and [H2O2] = 0.35 M. Half Reaction Eo (V) Fe3+(aq) + e‒ → Fe2+(aq) 0.77 H2O2(aq) + 2 e‒ → 2 OH‒(aq) 0.88 2 Fe2+(aq) + H2O2(aq) → 2 Fe3+(aq) + 2 OH‒(aq)

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 ?...

Subjects