Consider the following electrochemical cell. Ag(s) | Ag+(aq) || Cr3+(aq) | Cr(s) Determine the overall reaction...
Consider the following electrochemical cell.
Ag(s) | Ag+(aq) || Cr3+(aq) | Cr(s)
Determine the overall reaction and its standard cell potential (in V) at 25°C for this reaction. (Include states-of-matter under the given conditions in your answer. Use the lowest possible whole number coefficients.)
Overall reaction (please provide)=
standard cell potential V=
Is the reaction spontaneous at standard conditions?
Homework Answers
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Consider the following electrochemical cell.
Ag(s) | Ag+(aq) ||
Cr3+(aq) | Cr(s)
Determine the overall reaction...
Consider a galvanic electrochemical cell constructed using Cr/Cr3* and Zn/Zn2+ at 25 °C. The following half-reactions...
Consider a galvanic electrochemical cell constructed using Cr/Cr3* and Zn/Zn2+ at 25 °C. The following half-reactions are provided for each metal: Cr3+ (aq) + 3 e → Cr(s) Eºred = -0.744 V Zna*(aq) + 2 e Zn(s) Eºred = -0.763 V What is the standard cell potential for this cell?
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1. Consider the reaction below: 3Ag2S(s) + 8H+(aq) + 2NO3-(aq) ? 6Ag+(aq) + 3S(s) + 2NO(g) + 4H2O(l) In this reaction, which species is reduced? 2. Calculate Ecell for the following electrochemical cell which is operating under nonstandard conditions: Cr | Cr3+(0.010 M) || Ag+(0.00010 M) | Ag The relevant standard reduction potentials are: Cr3+(aq) + 3e- ? Cr(s) Eº = ?0.74 V Ag+(aq) + e- ? Ag(s) Eº = +0.80 V
A voltaic cell is constructed from a standard Cr3+Cr half cell (E® red = -0.740V) and...
A voltaic cell is constructed from a standard Cr3+Cr half cell (E® red = -0.740V) and a standard Cu2+ Cut half cell (E® red = 0.153V). (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: DB + + The cathode reaction is: The spontaneous cell reaction is: + 1 D- ODO The cell voltage is v.
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Consider the following electrochemical cell at 298.15 K: Cd(s) | Cd(NO3)2 (aq, m = 0.200) ||...
Consider the following electrochemical cell at 298.15 K: Cd(s) | Cd(NO3)2 (aq, m = 0.200) || KCl (aq, m = 0.0150) | Ag(s) | AgCl(s) A) Write the overall reaction. B) Calculate the standard cell potential and ∆GR°. C) Calculate the cell potential and ∆GR assuming activity coefficients are 1.00. D) Calculate the cell potential and ∆GR using the Debye-Huckel limiting law for the mean ionic activity coefficients. E) Is the cell reaction spontaneous as written? F) How much electrochemical...
Consider the following reaction at 298K. 2 Cr3+ (aq) + 2 r (aq) →→2 Cr2+ (aq)...
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For the following galvanic cell, represented in line notation, determine what balanced half-reactions occur at each...
For the following galvanic cell, represented in line notation, determine what balanced half-reactions occur at each electrode. (Use the lowest possible whole number coefficients. Include states-of-matter under the given conditions in your answer.) Cr(s) Cr3+ (aq) || Ni2+ (aq) | Ni(s) anode half-reaction: chemPad Help X. Greek cathode half-reaction: chemPad Help xg|xq|-el- Greek Supporting Materials
Enter electrons as e A voltaic cell is constructed in which the anode is a Cr|Cr3+half cell and t...
Enter electrons as e A voltaic cell is constructed in which the anode is a Cr|Cr3+half cell and the cathode is a H2Ht half cell. The half-cell compartments are connected by a salt bridge (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: The cathode reaction is: The net cell reaction is: In the external circuit, electrons migratethe Cr(Cr3+...
the following reaction occurring in an electrochemical cell at 25°C. (The equation is balanced.) fone 2...
the following reaction occurring in an electrochemical cell at 25°C. (The equation is balanced.) fone 2 pts) a. Use the standard half-cell potentials listed below to calculate the standard cell potential (Eºcell) for 3 Sn(s) + 2 Fe* (aq) - 3 Sn2+ (aq) + 2 Fe(s) Sn 2(aq) + 2 e -Sn (s) E = -0.14 V Fe3+ (aq) + 3 e Fe(s) E° = -0.036 V A) -0.176 V B)-0.104 V C) +0.104 V D) +0.176 V b. Write...
What is the calculated value of the cell potential at 298K for an electrochemical cell with...
What is the calculated value of the cell potential at 298K for an electrochemical cell with the following reaction, when the Age concentration is 1.28 M and the Zn2+ concentration is 6.17x10+M? 2 Ag+ (aq) + Zn(s)—+2Ag(s) + Zn2+(aq) Answer: V The cell reaction as written above is spontaneous for the concentrations given true false Submit Answer Retry Entire Group 9 more group attempts remaining What is the calculated value of the cell potential at 298K for an electrochemical cell...
Consider a galvanic electrochemical cell constructed using Cr/Cr3* and Zn/Zn2+ at 25 °C. The following half-reactions are provided for each metal: Cr3+ (aq) + 3 e → Cr(s) Eºred = -0.744 V Zna*(aq) + 2 e Zn(s) Eºred = -0.763 V What is the standard cell potential for this cell?
A voltaic cell is constructed from a standard Cr3+Cr half cell (E® red = -0.740V) and a standard Cu2+ Cut half cell (E® red = 0.153V). (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: DB + + The cathode reaction is: The spontaneous cell reaction is: + 1 D- ODO The cell voltage is v.
Consider the following reaction at 298K. 2 Cr3+ (aq) + 2 r (aq) →→2 Cr2+ (aq) + 12 (8) Which of the following statements are correct? Choose all that apply. n=4 mol electrons delta Gº < 0 OK<1 Eºcell < 0 The reaction is product-favored. Consider the following reaction at 298 K. 3 Fe3+ (aq) + Cr(s) – → 3 Fe2+(aq) + Cr3+(aq) Which of the following statements are correct? Choose all that apply. OK<1 n= 3 mol electrons E°...
For the following galvanic cell, represented in line notation, determine what balanced half-reactions occur at each electrode. (Use the lowest possible whole number coefficients. Include states-of-matter under the given conditions in your answer.) Cr(s) Cr3+ (aq) || Ni2+ (aq) | Ni(s) anode half-reaction: chemPad Help X. Greek cathode half-reaction: chemPad Help xg|xq|-el- Greek Supporting Materials
Enter electrons as e A voltaic cell is constructed in which the anode is a Cr|Cr3+half cell and the cathode is a H2Ht half cell. The half-cell compartments are connected by a salt bridge (Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.) The anode reaction is: The cathode reaction is: The net cell reaction is: In the external circuit, electrons migratethe Cr(Cr3+...
the following reaction occurring in an electrochemical cell at 25°C. (The equation is balanced.) fone 2 pts) a. Use the standard half-cell potentials listed below to calculate the standard cell potential (Eºcell) for 3 Sn(s) + 2 Fe* (aq) - 3 Sn2+ (aq) + 2 Fe(s) Sn 2(aq) + 2 e -Sn (s) E = -0.14 V Fe3+ (aq) + 3 e Fe(s) E° = -0.036 V A) -0.176 V B)-0.104 V C) +0.104 V D) +0.176 V b. Write...
What is the calculated value of the cell potential at 298K for an electrochemical cell with the following reaction, when the Age concentration is 1.28 M and the Zn2+ concentration is 6.17x10+M? 2 Ag+ (aq) + Zn(s)—+2Ag(s) + Zn2+(aq) Answer: V The cell reaction as written above is spontaneous for the concentrations given true false Submit Answer Retry Entire Group 9 more group attempts remaining What is the calculated value of the cell potential at 298K for an electrochemical cell...
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