Homework Answers
EAg+/Ag = +0.222 V
ECr3+/Cr = -0.41 V
We see that it is possible to obtain an electrochemical cell using Cr anode and Ag cathopde because the net E of cell is positive as given by:
Ecell = EAg+/Ag - ECr3+/Cr = +0.222 - (-0.41) = +0.632 V
Overall balanced equation:
3 Ag+(aq) + Cr(s)
3 Ag(s) + Cr3+(aq)
Electrolytes : Cathode half cell : AgNO3
Anode Half cell : Cr(NO3)3
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Using the electrochemical series and the standard reduction potential tables in your text, would you be...
need help with the rest of the table EXPERIMENT 10 DETERMINATION OF THE ELECTROCHEMICAL SERIES PURPOSE...
need help with the rest of the table
EXPERIMENT 10 DETERMINATION OF THE ELECTROCHEMICAL SERIES PURPOSE To determine the standard cell potential values of several electrochemical coll INTRODUCTION The basis for an electrochemical cell is an oxidation reduction Corredor be divided into two half reactions reaction. This reaction can Oxidation half reaction Gloss of electrons) takes place at the anode, which is the positive electrode that the anions migrate to Chence the name anode) Reduction half reaction (gain of electrons)...
Using tabulated standard reduction potentials from your text, calculate the standard cell potential, E degree_cell (always...
Using tabulated standard reduction potentials from your text, calculate the standard cell potential, E degree_cell (always positive for a galvanic cell), based on the following reaction: Cu^2+ (aq) + Mg(s) Mg^2+ (aq) + Cu(s) A galvanic cell based on the above reaction is constructed according to the generic sketch of a galvanic cell shown below:
Electrochemical cell potential can be calculated using the Nernst equation. $$ E_{\text {cell }}=E_{c \text {...
Electrochemical cell potential can be calculated using the Nernst equation.
$$ E_{\text {cell }}=E_{c \text { cell }}^{o}-\left(\frac{R T}{n F}\right) \ln Q $$
Identify the value represented by each variable in the equation.
Ecell: Choose... El Choose... R: Choose... T: Choose... n: Choose... F: Choose... Q: Choose...
Each question can be either yes or no Selective Reduction The standard reduction potential for the...
Each question can be either yes or no
Selective Reduction The standard reduction potential for the half-reaction: 4+ Sn is +0.15 V. Consider data from the table of standard reduction potentials for common half-reactions, in your text. For a galvanic cell under standard conditions, which of the following anodic half reactions would produce, at the cathode a spontaneous reduction of Sn to Sn but not Sn to Sn. 2 2+ Fe Fe2+ 2e Pb SO 2e 2H H2 2e 2+...
Calculate Ecell (the reduction potential for the balanced chemical equation under nonstandard conditions) for the electrochemical...
Calculate Ecell (the reduction potential for the balanced chemical equation under nonstandard conditions) for the electrochemical cell shown below: Pt | Fe2+ (4.25x10-3 M), Fe3+ (1.50x10-3 M) || MnO4 - (6.50x10-3 M), Mn2+ (2.00x10-2 M), H+ (0.100 M) | Pt. Use the following standard reduction potentials for each half reaction. The Eo for Fe3+/Fe2+ = 0.77 V and Eo for MnO4 - /Mn2+ = 1.51 V.
A certain half-reaction has a standard reduction potential rod = +0.81 V. An engineer proposes using...
A certain half-reaction has a standard reduction potential rod = +0.81 V. An engineer proposes using this half-reaction at the cathode of a galvanic cell that must provide at least 0.90 V of electrical power. The cell will operate under standard conditions. Note for advanced students: assume the engineer requires this half-reaction to happen at the cathode of the cell. 0-0 Do oº Is there a minimum standard reduction potential that the half reaction used at the anode of this...
A certain half-reaction has a standard reduction potential Ered = +0.03 V. An engineer proposes using...
A certain half-reaction has a standard reduction potential Ered = +0.03 V. An engineer proposes using this half-reaction at the cathode of a galvanic cell that must provide at least 0.80 V of electrical power. The cell will operate under standard conditions. Note for advanced students: assume the engineer requires this half-reaction to happen at the cathode of the cell. 00 Is there a minimum standard reduction potential that the half-reaction used at the anode of this cell can have?...
A certain half-reaction has a standard reduction potential Ered = +0.23 V. An engineer proposes using...
A certain half-reaction has a standard reduction potential Ered = +0.23 V. An engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least 1.40 V of electrical power. The cell will operate under standard conditions. Note for advanced students: assume the engineer requires this half-reaction to happen at the anode of the cell. Is there a minimum standard reduction potential that the half-reaction used at the cathode of this cell can have? g...
A certain half-reaction has a standard reduction potential e ed =-0.80 V. An engineer proposes using...
A certain half-reaction has a standard reduction potential e ed =-0.80 V. An engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least 0.60 V of electrical power. The cell will operate under standard conditions. Note for advanced students: assume the engineer requires this half-reaction to happen at the anode of the cell. Is there a minimum standard reduction potential that the half-reaction used at the cathode of this cell can have? O...
Selective Reduction The standard reduction potential for the half-reaction: Sn4+ + 2e - Sn2+ is +0.15...
Selective Reduction The standard reduction potential for the half-reaction: Sn4+ + 2e - Sn2+ is +0.15 V. Consider data from the table of standard reduction potentials for common half-reactions, in your text. For a galvanic cell under standard conditions, which of the following anodic half reactions would produce, at the cathode a spontaneous reduction of Sn4+ to Sn2+ but not Sn2+ to Sn. no yes yes yes yes yes Fe — Fe2+ + 2e- Sn2+ Sn4+ + 2e- Sn Sn2+...
need help with the rest of the table
EXPERIMENT 10 DETERMINATION OF THE ELECTROCHEMICAL SERIES PURPOSE To determine the standard cell potential values of several electrochemical coll INTRODUCTION The basis for an electrochemical cell is an oxidation reduction Corredor be divided into two half reactions reaction. This reaction can Oxidation half reaction Gloss of electrons) takes place at the anode, which is the positive electrode that the anions migrate to Chence the name anode) Reduction half reaction (gain of electrons)...
Using tabulated standard reduction potentials from your text, calculate the standard cell potential, E degree_cell (always positive for a galvanic cell), based on the following reaction: Cu^2+ (aq) + Mg(s) Mg^2+ (aq) + Cu(s) A galvanic cell based on the above reaction is constructed according to the generic sketch of a galvanic cell shown below:
Electrochemical cell potential can be calculated using the Nernst equation.
$$ E_{\text {cell }}=E_{c \text { cell }}^{o}-\left(\frac{R T}{n F}\right) \ln Q $$
Identify the value represented by each variable in the equation.
Ecell: Choose... El Choose... R: Choose... T: Choose... n: Choose... F: Choose... Q: Choose...
Each question can be either yes or no
Selective Reduction The standard reduction potential for the half-reaction: 4+ Sn is +0.15 V. Consider data from the table of standard reduction potentials for common half-reactions, in your text. For a galvanic cell under standard conditions, which of the following anodic half reactions would produce, at the cathode a spontaneous reduction of Sn to Sn but not Sn to Sn. 2 2+ Fe Fe2+ 2e Pb SO 2e 2H H2 2e 2+...
A certain half-reaction has a standard reduction potential rod = +0.81 V. An engineer proposes using this half-reaction at the cathode of a galvanic cell that must provide at least 0.90 V of electrical power. The cell will operate under standard conditions. Note for advanced students: assume the engineer requires this half-reaction to happen at the cathode of the cell. 0-0 Do oº Is there a minimum standard reduction potential that the half reaction used at the anode of this...
A certain half-reaction has a standard reduction potential Ered = +0.03 V. An engineer proposes using this half-reaction at the cathode of a galvanic cell that must provide at least 0.80 V of electrical power. The cell will operate under standard conditions. Note for advanced students: assume the engineer requires this half-reaction to happen at the cathode of the cell. 00 Is there a minimum standard reduction potential that the half-reaction used at the anode of this cell can have?...
A certain half-reaction has a standard reduction potential Ered = +0.23 V. An engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least 1.40 V of electrical power. The cell will operate under standard conditions. Note for advanced students: assume the engineer requires this half-reaction to happen at the anode of the cell. Is there a minimum standard reduction potential that the half-reaction used at the cathode of this cell can have? g...
A certain half-reaction has a standard reduction potential e ed =-0.80 V. An engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least 0.60 V of electrical power. The cell will operate under standard conditions. Note for advanced students: assume the engineer requires this half-reaction to happen at the anode of the cell. Is there a minimum standard reduction potential that the half-reaction used at the cathode of this cell can have? O...
Selective Reduction The standard reduction potential for the half-reaction: Sn4+ + 2e - Sn2+ is +0.15 V. Consider data from the table of standard reduction potentials for common half-reactions, in your text. For a galvanic cell under standard conditions, which of the following anodic half reactions would produce, at the cathode a spontaneous reduction of Sn4+ to Sn2+ but not Sn2+ to Sn. no yes yes yes yes yes Fe — Fe2+ + 2e- Sn2+ Sn4+ + 2e- Sn Sn2+...
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