Question 1

The standard cell potential for the following galvanic cell is 1.21 V. Al(s)|Al³⁺(aq)||Fe²⁺(aq)|Fe(s) When [Al³⁺] = 0.10 M and [Fe²⁺] = 0.10 M,will the cell potential at 25°C be less than,the same as,or greater than 1.21 V?

Accepted Answer

The answer of The standard cell potential for the following...

Question 2

The two half-reactions that are used in the direct methanol fuel cell are shown below. I.2 CH₃OH(aq)+ 2 H₂O(l)→ 2 CO₂(g)+ 12 H⁺(aq)+ 12 e^- II.3 O₂(g)+ 12 H⁺(aq)+ 12 e^- → 6 H₂O(l) The electrode at which half-reaction I occurs is the ________ at which ________ is oxidized,and half-reaction II occurs at the ________ at which ________ is reduced.

Accepted Answer

The answer of The two half-reactions that are used in...

Question 3

The standard reduction potential E° = -0.45 V for the half-reaction Fe²⁺ + 2 e^- → Fe.If the measured cell potential at 25°C is 0.35 V,the pH in the anode compartment of the following cell is ________. Pt(s)|H₂(1 atm)|H⁺(? M)||Fe²⁺(1 M)|Fe(s)

Accepted Answer

The answer of The standard reduction potential E° = -0.45...

Question 4

If a constant current of 1.50 × 10⁸ A is passed through a molten mixture of aluminum oxide and cryolite for 4.00 hour ________ kg of aluminum can be produced.

Accepted Answer

The answer of If a constant current of 1.50 ×...

Question 5

Based on the half-reactions and their respective standard reduction potentials below,the standard cell potential for the reaction that is expected to occur is ________ V. Ag⁺(aq)+ e^- → Ag(s)0.80 V 2 H⁺(aq)+ 2 e^- → H₂(g)0.00 V Cd²⁺(aq)+ 2 e^- → Cd(s)-0.40 V

Accepted Answer

The answer of Based on the half-reactions and their respective...

Question 6

The standard cell potential for the following galvanic cell is 0.71 V. Pb(s)|Pb²⁺(aq)||Al³⁺(aq)|Al This reaction has an equilibrium constant,K = ________.

Accepted Answer

The answer of The standard cell potential for the following...

Question 7

Reduction half-reactions with corresponding standard half-cell potentials are shown below. Zn²⁺(aq)+ 2 e^-→ Zn(s)E° = - 0.76 V Al³⁺(aq)+ 3 e^-→ Al(s)E° = - 1.66 V The standard potential for the galvanic cell that uses these two half-reactions is ________ V.

Accepted Answer

The answer of Reduction half-reactions with corresponding standard half-cell potentials...

Question 8

For the hypothetical reaction 3 A + 2 B^x → 3 A^y + 2 B,E° = 0.85 V and G° = -495 kJ.For this reaction the values of x and y are ________ and ________.

Accepted Answer

The answer of For the hypothetical reaction 3 A +...

Question 9

In order for a cell potential to be a standard cell potential,the concentration of all ions in solution must be ________ M,the partial pressures of all gaseous species must be ________ atm,and the temperature must be ________ K.

Accepted Answer

The answer of In order for a cell potential to...

Question 10

Based on the half-reactions and their respective standard reduction potentials below,the strongest reducing agent is ________,and the strongest oxidizing agent is ________. Fe³⁺(aq)+ e^- → Fe²⁺(aq)0.77 V Cu²⁺(aq)+ 2 e^- → Cu(aq)0.15 V Zn²⁺(aq)+ 2 e^- → Zn(s)-0.76 V

Accepted Answer

The answer of Based on the half-reactions and their respective...

Question 11

Reduction half-reactions with corresponding standard half-cell potentials are shown below. Ag⁺(aq)+ 1 e^-→ Ag(s)E° = +0.80 V Zn²⁺(aq)+ 2 e^-→ Zn(s)E° = -0.76 V Mg²⁺(aq)+ 2 e^-→ Mg(s)E° = -2.37 V Of the species above,the strongest oxidizing agent is ________,and the strongest reducing agent is ________.

Accepted Answer

The answer of Reduction half-reactions with corresponding standard half-cell potentials...

Question 12

Electrolysis of a metal nitrate solution M(NO₃)₂(aq)for 3.00 hours with a constant current of 20.0 A gives 119 g of the metal M.The identity of the metal M in the metal ion M²⁺ is ________.

Accepted Answer

The answer of Electrolysis of a metal nitrate solution M(NO₃)₂(aq)for...

Quiz 18: Electrochemistry

The standard cell potential for the following galvanic cell is 1.21 V. Al(s)|Al³⁺(aq)||Fe²⁺(aq)|Fe(s) When [Al³⁺] = 0.10 M and [Fe²⁺] = 0.10 M,will the cell potential at 25°C be less than,the same as,or greater than 1.21 V?

The standard reduction potential E° = -0.45 V for the half-reaction Fe²⁺ + 2 e^- → Fe.If the measured cell potential at 25°C is 0.35 V,the pH in the anode compartment of the following cell is ________. Pt(s)|H₂(1 atm)|H⁺(? M)||Fe²⁺(1 M)|Fe(s)

If a constant current of 1.50 × 10⁸ A is passed through a molten mixture of aluminum oxide and cryolite for 4.00 hour ________ kg of aluminum can be produced.

Based on the half-reactions and their respective standard reduction potentials below,the standard cell potential for the reaction that is expected to occur is ________ V. Ag⁺(aq)+ e^- → Ag(s)0.80 V 2 H⁺(aq)+ 2 e^- → H₂(g)0.00 V Cd²⁺(aq)+ 2 e^- → Cd(s)-0.40 V

The standard cell potential for the following galvanic cell is 0.71 V. Pb(s)|Pb²⁺(aq)||Al³⁺(aq)|Al This reaction has an equilibrium constant,K = ________.

Reduction half-reactions with corresponding standard half-cell potentials are shown below. Zn²⁺(aq)+ 2 e^-→ Zn(s)E° = - 0.76 V Al³⁺(aq)+ 3 e^-→ Al(s)E° = - 1.66 V The standard potential for the galvanic cell that uses these two half-reactions is ________ V.

For the hypothetical reaction 3 A + 2 B^x → 3 A^y + 2 B,E° = 0.85 V and G° = -495 kJ.For this reaction the values of x and y are and .

In order for a cell potential to be a standard cell potential,the concentration of all ions in solution must be M,the partial pressures of all gaseous species must be atm,and the temperature must be K.

Based on the half-reactions and their respective standard reduction potentials below,the strongest reducing agent is ,and the strongest oxidizing agent is . Fe³⁺(aq)+ e^- → Fe²⁺(aq)0.77 V Cu²⁺(aq)+ 2 e^- → Cu(aq)0.15 V Zn²⁺(aq)+ 2 e^- → Zn(s)-0.76 V

Electrolysis of a metal nitrate solution M(NO₃)₂(aq)for 3.00 hours with a constant current of 20.0 A gives 119 g of the metal M.The identity of the metal M in the metal ion M²⁺ is ________.

Quiz 18: Electrochemistry

The standard cell potential for the following galvanic cell is 1.21 V. Al(s)|Al3+(aq)||Fe2+(aq)|Fe(s) When [Al3+] = 0.10 M and [Fe2+] = 0.10 M,will the cell potential at 25°C be less than,the same as,or greater than 1.21 V?

The standard reduction potential E° = -0.45 V for the half-reaction Fe2+ + 2 e- → Fe.If the measured cell potential at 25°C is 0.35 V,the pH in the anode compartment of the following cell is ________. Pt(s)|H2(1 atm)|H+(? M)||Fe2+(1 M)|Fe(s)

If a constant current of 1.50 × 108 A is passed through a molten mixture of aluminum oxide and cryolite for 4.00 hour ________ kg of aluminum can be produced.

Based on the half-reactions and their respective standard reduction potentials below,the standard cell potential for the reaction that is expected to occur is ________ V. Ag+(aq)+ e- → Ag(s)0.80 V 2 H+(aq)+ 2 e- → H2(g)0.00 V Cd2+(aq)+ 2 e- → Cd(s)-0.40 V

The standard cell potential for the following galvanic cell is 0.71 V. Pb(s)|Pb2+(aq)||Al3+(aq)|Al This reaction has an equilibrium constant,K = ________.

Reduction half-reactions with corresponding standard half-cell potentials are shown below. Zn2+(aq)+ 2 e- → Zn(s)E° = - 0.76 V Al3+(aq)+ 3 e- → Al(s)E° = - 1.66 V The standard potential for the galvanic cell that uses these two half-reactions is ________ V.

For the hypothetical reaction 3 A + 2 Bx → 3 Ay + 2 B,E° = 0.85 V and G° = -495 kJ.For this reaction the values of x and y are ________ and ________.

In order for a cell potential to be a standard cell potential,the concentration of all ions in solution must be ________ M,the partial pressures of all gaseous species must be ________ atm,and the temperature must be ________ K.

Based on the half-reactions and their respective standard reduction potentials below,the strongest reducing agent is ________,and the strongest oxidizing agent is ________. Fe3+(aq)+ e- → Fe2+(aq)0.77 V Cu2+(aq)+ 2 e- → Cu (aq)0.15 V Zn2+(aq)+ 2 e- → Zn(s)-0.76 V

Electrolysis of a metal nitrate solution M(NO3)2(aq)for 3.00 hours with a constant current of 20.0 A gives 119 g of the metal M.The identity of the metal M in the metal ion M2+ is ________.

The standard cell potential for the following galvanic cell is 1.21 V. Al(s)|Al³⁺(aq)||Fe²⁺(aq)|Fe(s) When [Al³⁺] = 0.10 M and [Fe²⁺] = 0.10 M,will the cell potential at 25°C be less than,the same as,or greater than 1.21 V?

The standard reduction potential E° = -0.45 V for the half-reaction Fe²⁺ + 2 e^- → Fe.If the measured cell potential at 25°C is 0.35 V,the pH in the anode compartment of the following cell is ________. Pt(s)|H₂(1 atm)|H⁺(? M)||Fe²⁺(1 M)|Fe(s)

If a constant current of 1.50 × 10⁸ A is passed through a molten mixture of aluminum oxide and cryolite for 4.00 hour ________ kg of aluminum can be produced.

Based on the half-reactions and their respective standard reduction potentials below,the standard cell potential for the reaction that is expected to occur is ________ V. Ag⁺(aq)+ e^- → Ag(s)0.80 V 2 H⁺(aq)+ 2 e^- → H₂(g)0.00 V Cd²⁺(aq)+ 2 e^- → Cd(s)-0.40 V

The standard cell potential for the following galvanic cell is 0.71 V. Pb(s)|Pb²⁺(aq)||Al³⁺(aq)|Al This reaction has an equilibrium constant,K = ________.

Reduction half-reactions with corresponding standard half-cell potentials are shown below. Zn²⁺(aq)+ 2 e^-→ Zn(s)E° = - 0.76 V Al³⁺(aq)+ 3 e^-→ Al(s)E° = - 1.66 V The standard potential for the galvanic cell that uses these two half-reactions is ________ V.

For the hypothetical reaction 3 A + 2 B^x → 3 A^y + 2 B,E° = 0.85 V and G° = -495 kJ.For this reaction the values of x and y are and .

In order for a cell potential to be a standard cell potential,the concentration of all ions in solution must be M,the partial pressures of all gaseous species must be atm,and the temperature must be K.

Based on the half-reactions and their respective standard reduction potentials below,the strongest reducing agent is ,and the strongest oxidizing agent is . Fe³⁺(aq)+ e^- → Fe²⁺(aq)0.77 V Cu²⁺(aq)+ 2 e^- → Cu(aq)0.15 V Zn²⁺(aq)+ 2 e^- → Zn(s)-0.76 V

Electrolysis of a metal nitrate solution M(NO₃)₂(aq)for 3.00 hours with a constant current of 20.0 A gives 119 g of the metal M.The identity of the metal M in the metal ion M²⁺ is ________.