The half cell voltage for a Fe^3+/Fe^2+ electrode is measured to be +0.810V. Based on this...
The half cell voltage for a Fe^3+/Fe^2+ electrode is measured to be +0.810V. Based on this information, and the E°red values provided, which species has a higher concentration?
Fe^3+(aq) +e- --> Fe^2+(aq) E°red= 0.771V
Fe^3+(aq) +3e- --> Fe(s) E°red= -0.037V
Fe^3+(aq) +2e- --> Fe(s) E°red= -0.447V
Homework Answers
reduction potential; values describes the tendency of chemcial species to acquiring electrons
from the given half cell reactionas F+3(aq)+ 3e-= Fe(S) has highest concentration as it has larger potential value
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The half cell voltage for a Fe^3+/Fe^2+ electrode is measured to
be +0.810V. Based on this...
A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential Fe+3(aq)...
A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential Fe+3(aq) +e− → Fe+2(aq) =E0red+0.771V 2H2O(l) +2e− → H2(g) + 2OH−(aq) =E0red−0.83V Answer the following questions about this cell. Write a balanced equation for the half-reaction that happens at the cathode. Write a balanced equation for the half-reaction that happens at the anode. Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is spontaneous as written. Do you...
need help for half cell potentials pls calculate step by step (NOTE - Remember that the...
need help for half cell potentials pls calculate step by step
(NOTE - Remember that the positive electrode is attached to the red wire and the negative electrode is attached to the black wire.) Electrode Systems Used Anode (oxidation) Negative Cathode (reduction) Positive Measured Potential (V) Positive (Ecu) Copper and silver Cu() - Cu2+ + 2e" Ag+ +1e Ag) 0.432 V Zinc + Silver Zn cs + 2n**+ Zé dat + leº nAg (s) 1.484 V Copper & Zinc Zn(s)...
use tabulated standard electrode potential to calculate the standard cell potential for the reaction occurring in an el...
use tabulated standard electrode potential to calculate the
standard cell potential for the reaction occurring in an
electrochemical cell at 25 C. (The equation is balanced.)
3Ni^2+(aq)+2Cr(s)--->3Ni(s)2Cr^3+(aq)
Express your answer to two significant figures and include the
appropriate units.
em 26 E (V) -0.45 -0.50 -0.73 -0.76 -1.18 Standard reduction half-cell potentials at 25°C Half-reaction E° (V) Half-reaction Aul+ (aq) + 3e +Au(s) 1.50 Fe2+ (aq) + 2eFe(s) Ag+ (aq) +e-Ag(s) 0.80 Cr3+ (aq) + Cr²+ (aq) Fe+(aq) + 3e...
help with these please Consider the following half-reactions: Half-reaction Eo (V) F2(g)+ 2e 2F (aq) 2.870V...
help with these please
Consider the following half-reactions: Half-reaction Eo (V) F2(g)+ 2e 2F (aq) 2.870V Sn2 (aq) + 2e- Sn(s) 0.140V Cr3 (aq) + 3e° _ Cr(s)-0.740V (1) The strongest oxidizing agent is: enter formula (2) The weakest oxidizing agent is: (3) The weakest reducing agent is: (4) The strongest reducing agent is: (5) Will F2(g) oxidize Cr(s) to Cr3 (aq)? (6) Which species can be oxidized by Sn2 (aq)? If none, leave box blank. Consider the following half-reactions:...
question iii 10. An electrochemical cell consists of a standard Fe/Fe electrode (Fe (aq) (1.OM) IFe...
question iii
10. An electrochemical cell consists of a standard Fe/Fe electrode (Fe (aq) (1.OM) IFe (aq) (1.0M) IPt(s) and a copper metal electrode ( concentrations) Cu2 (aq) +2e Cu(s) Fe (aq) le Fe (aq) +0.34 V -034 +0.77V Mark what is the corect balanced equation for the spontaneous reac u (aq) Fe (aq) Cu(s)+Fe2 (aq) C) Cu(s) + Fe (aq) Cu (aq) + Fe (aq) α Cu2+(aq) + 2e → Cu(s) + Fe2+(aq) Cu → Cu2ト+20 94 i) (...
1. A voltaic cell is constructed from a Al/Al half-cell (E'red -1.66 V) and a Fe/Fe?...
1. A voltaic cell is constructed from a Al/Al half-cell (E'red -1.66 V) and a Fe/Fe? half- cell (Ered-0.44V) Give the oxidation half reaction and E"ox, the reduction half reaction and E'red, and the overall reaction and E"cell: Oxidation: Reduction: red E cell Overall Reaction: 2. For the cell Fe(s) Fe2+ | Pb* | Pb), the standard cell potential is +0.31 V. A cell using these reagents was made, and the observed potential was +0.37 V at 25°C. A) What...
The standard half-cell potentials for three reactions are given below: Fe²+(aq) + 2e = Fe(s) Fe3+(aq)...
The standard half-cell potentials for three reactions are given below: Fe²+(aq) + 2e = Fe(s) Fe3+(aq) + 3e = Fe(s) Br2(aq) + 2e = 2Br (aq) E° = -0.44V E° = -0.04V E° = 1.09V Q 1(a) Determine what pair of half-cell reactions yields the most spontaneous redox process. Q 1(b) Calculate AGº for this process and comment on whether iron is plated during this process. Q 1(c) Draw a labelled energy level diagram showing the reactants, products and AGO....
PART II. Voltaic Cell Design In each of the following two problems, there's a pair of...
PART II. Voltaic Cell Design In each of the following two problems, there's a pair of half-reactions shown in standard reduction form. In each problem, reverse the appropriate half-reaction, and indicate the following at the diagrams: a) voltage displayed by voltmeter (assume standard conditions) b) content of solution in each half-cell c) substance used for each electrode d) which electrode is anode, which is cathode e) which electrode is (+), which is (-) f) direction of electron flow g) direction...
2. Using the information provided, calculate the standard cell potential, Eºcell, for the reaction below: Half-reaction...
2. Using the information provided, calculate the standard cell potential, Eºcell, for the reaction below: Half-reaction Cr3+ (aq) + 3e- → Cr(s) Fe2+ (aq) + 2e- → Fe(s) Fe3+ (aq) + e- + Fe2+ (s) Sn4+ (aq) + 2e- + Sn2+ (aq) E° (V) -0.74 -0.440 +0.771 +0.154 3Sn(aq) +2Cr(s) →2Cr" (aq) +35n²+ (aq)
Write the half-reactions as they occur at each electrode and the net cell reaction for this...
Write the half-reactions as they occur at each electrode and the net cell reaction for this electrochemical cell containing indium and cadmium: ln(s)|ln^3+ (aq)||Cd^2+ (aq)|Cd(s) anode: Ln rightarrow Ln^3+ + 3e^- cathode: Cd^2+ + 2e^- rightarrow Cd net cell reaction: 2ln + 3ed^2+ rightarrow 3ed + 2ln^3+
need help for half cell potentials pls calculate step by step
(NOTE - Remember that the positive electrode is attached to the red wire and the negative electrode is attached to the black wire.) Electrode Systems Used Anode (oxidation) Negative Cathode (reduction) Positive Measured Potential (V) Positive (Ecu) Copper and silver Cu() - Cu2+ + 2e" Ag+ +1e Ag) 0.432 V Zinc + Silver Zn cs + 2n**+ Zé dat + leº nAg (s) 1.484 V Copper & Zinc Zn(s)...
use tabulated standard electrode potential to calculate the
standard cell potential for the reaction occurring in an
electrochemical cell at 25 C. (The equation is balanced.)
3Ni^2+(aq)+2Cr(s)--->3Ni(s)2Cr^3+(aq)
Express your answer to two significant figures and include the
appropriate units.
em 26 E (V) -0.45 -0.50 -0.73 -0.76 -1.18 Standard reduction half-cell potentials at 25°C Half-reaction E° (V) Half-reaction Aul+ (aq) + 3e +Au(s) 1.50 Fe2+ (aq) + 2eFe(s) Ag+ (aq) +e-Ag(s) 0.80 Cr3+ (aq) + Cr²+ (aq) Fe+(aq) + 3e...
help with these please
Consider the following half-reactions: Half-reaction Eo (V) F2(g)+ 2e 2F (aq) 2.870V Sn2 (aq) + 2e- Sn(s) 0.140V Cr3 (aq) + 3e° _ Cr(s)-0.740V (1) The strongest oxidizing agent is: enter formula (2) The weakest oxidizing agent is: (3) The weakest reducing agent is: (4) The strongest reducing agent is: (5) Will F2(g) oxidize Cr(s) to Cr3 (aq)? (6) Which species can be oxidized by Sn2 (aq)? If none, leave box blank. Consider the following half-reactions:...
question iii
10. An electrochemical cell consists of a standard Fe/Fe electrode (Fe (aq) (1.OM) IFe (aq) (1.0M) IPt(s) and a copper metal electrode ( concentrations) Cu2 (aq) +2e Cu(s) Fe (aq) le Fe (aq) +0.34 V -034 +0.77V Mark what is the corect balanced equation for the spontaneous reac u (aq) Fe (aq) Cu(s)+Fe2 (aq) C) Cu(s) + Fe (aq) Cu (aq) + Fe (aq) α Cu2+(aq) + 2e → Cu(s) + Fe2+(aq) Cu → Cu2ト+20 94 i) (...
1. A voltaic cell is constructed from a Al/Al half-cell (E'red -1.66 V) and a Fe/Fe? half- cell (Ered-0.44V) Give the oxidation half reaction and E"ox, the reduction half reaction and E'red, and the overall reaction and E"cell: Oxidation: Reduction: red E cell Overall Reaction: 2. For the cell Fe(s) Fe2+ | Pb* | Pb), the standard cell potential is +0.31 V. A cell using these reagents was made, and the observed potential was +0.37 V at 25°C. A) What...
The standard half-cell potentials for three reactions are given below: Fe²+(aq) + 2e = Fe(s) Fe3+(aq) + 3e = Fe(s) Br2(aq) + 2e = 2Br (aq) E° = -0.44V E° = -0.04V E° = 1.09V Q 1(a) Determine what pair of half-cell reactions yields the most spontaneous redox process. Q 1(b) Calculate AGº for this process and comment on whether iron is plated during this process. Q 1(c) Draw a labelled energy level diagram showing the reactants, products and AGO....
PART II. Voltaic Cell Design In each of the following two problems, there's a pair of half-reactions shown in standard reduction form. In each problem, reverse the appropriate half-reaction, and indicate the following at the diagrams: a) voltage displayed by voltmeter (assume standard conditions) b) content of solution in each half-cell c) substance used for each electrode d) which electrode is anode, which is cathode e) which electrode is (+), which is (-) f) direction of electron flow g) direction...
2. Using the information provided, calculate the standard cell potential, Eºcell, for the reaction below: Half-reaction Cr3+ (aq) + 3e- → Cr(s) Fe2+ (aq) + 2e- → Fe(s) Fe3+ (aq) + e- + Fe2+ (s) Sn4+ (aq) + 2e- + Sn2+ (aq) E° (V) -0.74 -0.440 +0.771 +0.154 3Sn(aq) +2Cr(s) →2Cr" (aq) +35n²+ (aq)
Write the half-reactions as they occur at each electrode and the net cell reaction for this electrochemical cell containing indium and cadmium: ln(s)|ln^3+ (aq)||Cd^2+ (aq)|Cd(s) anode: Ln rightarrow Ln^3+ + 3e^- cathode: Cd^2+ + 2e^- rightarrow Cd net cell reaction: 2ln + 3ed^2+ rightarrow 3ed + 2ln^3+
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