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Consider the following electrochemical cell operating at 25°C (Pt is an inert electrode): Pl(a) Cu() 1...
Did i get theae correct 11. Classify Nuolas estong bewe, wank base, strong aid wek xid,...
Did i get theae correct
11. Classify Nuolas estong bewe, wank base, strong aid wek xid, med en newer the following question. What is the plot 5.810*MNO tid? - 1273 105 45 138 12. Wat [A] is noeded to begls precipitating ApS00) from 20.053 M SO. solution? K of Ag. So, -16310 1.7x16M) 92310M 1x O'M 4 30x10*M*7x10M 13. What is the charge of fe in the complex [Fe(CNASOJI" 1 4 2 1 14. Classify HICHO, as a strong bawak...
Question 29 3 pts Which of the following statement(s) is (are) true when the cell operates...
Question 29 3 pts Which of the following statement(s) is (are) true when the cell operates spontaneously? (That is, when e are allowed to flow whichever way they want to) 1. The Pt electrode would be the anode 2. The measured voltage would be +57 V 3. The measured voltage would be +1.79 V 4. Electrons would move from right to left (---) 1 M Bro, (aq) 1 M Br" (aq) 1 MOH(aq) 1 M Mn(aq) 2 only 3 only...
In an electrochemical cell composed of Zn(s)|Zn2+|| Cu2+, Cu(s), Which species is the oxidizing agent? Which...
In an electrochemical cell composed of Zn(s)|Zn2+|| Cu2+, Cu(s), Which species is the oxidizing agent? Which species is the reducing agent? In an electrochemical cell composed of Zn(s)| Zn2+1| Cu2+|Cu(s), Which electrode could be replaced with an inert electrode (such as Pt)? Which species is the anode? Which species is the cathode?
Suppose a chemist starts with an aqueous buffer that contains 0.05 mol of HCN and 0.07...
Suppose a chemist starts with an aqueous buffer that contains 0.05 mol of HCN and 0.07 mol of NaCN in a total volume of 1.00 L. What is the pH after 0.03 mol of OH is added to the buffer? a. 2.01 b. 9.46 c. 10.92 d. 10.01 e. 8.61 Calculate Eºcell for the following balanced redox reaction in acidic solution: 35024+ 2Cr(s) + 12 H+ + 3 SO2 (g) + 2Cr+3 + 6 H2O (acidic) a. +1.945 V b....
An electrochemical cell consists of a standard hydrogen electrode and a copper metal electrode. a. What...
An electrochemical cell consists of a standard hydrogen electrode and a copper metal electrode. a. What is the potential of the cell at 25°C if the copper electrode is placed in a solution in which = 3.8 x 10-4 M? Ecell = V b. The copper electrode is placed in a solution of unknown (Cu?+]. The measured potential at 25°C is 0.206 v. What is (cu?+]? (Assume Cu²+ is reduced.) [Cu²+] = M
An electrochemical cell is expressed as Cu(s) | Cu^2+ (0.20 M) || I^- (0.10 M) |...
An electrochemical cell is expressed as Cu(s) | Cu^2+ (0.20 M) || I^- (0.10 M) | I_3^- (0.20 M) | Pt. I_3^- + 2e^- rightarrow 3I^-, E^0 = 0.535 V Cu^2+ + 2e^- rightarrow Cu(s) E^0 = 0.339 V Please answer the following questions: a. Write half-cell reactions at anode and at cathode. b. Write whole-cell reaction. c. Calculate the potential/voltage of the cell. d. Calculate equilibrium constant for this whole-cell reaction.
3. For the electrochemical cell: Pt(s) | H2(1 atm) | H'(I M)I| C u2(1 M) Cu(s),...
3. For the electrochemical cell: Pt(s) | H2(1 atm) | H'(I M)I| C u2(1 M) Cu(s), which one of the following changes will cause an increase in the cell voltage? A) Lower the H2(g) pressure. B) Increase the size/mass of the copper electrode. C) Lower the H (aq) concentration. D) Decrease the concentration of Cu* ion. E) None of the above. 2+
Consider the following electrochemical cell: Pt | Cu2+ (aq) | Cu+ (aq) || Fe2+ (aq) |...
Consider the following electrochemical cell: Pt | Cu2+ (aq) | Cu+ (aq) || Fe2+ (aq) | Fe3+ (aq)| Pt The cell is constructed by preparing one half-cell with a solution containing 8.33 * 10-3 M FeCl3 and 1.67*10-2 M FeCl2, and preparing the other half-cell with a solution containing 8.33*10-3 M CuCl2 and 0.025 M CuCl. Calculate the cell potential once the half-cells are connected to each other. E°(Cu2+/Cu+) = 0.16 V; E°(Fe2+/Fe3+) = 0.77 V
Table provided below for context Please answer all parts that you can. 1. Which electrochemical cell...
Table provided below for context
Please answer all parts that you can.
1. Which electrochemical cell had the greatest voltage? Identify the anode and the cathode for this pair, the measured cell potential, and the calculated Eºcell- 2. Which electrochemical cell had the smallest voltage? Identify the anode and the cathode for this pair, the measured cell potential, and the calculated Eºcell- 3. If the oxidation and reduction half-reactions are separated in a battery, this means the oxidizing agent is...
pos Calculate the cell potential at 25°C from an electrochemical (galvanie) cell using Cu as the...
pos Calculate the cell potential at 25°C from an electrochemical (galvanie) cell using Cu as the anode and MnO2 as the cathode. Give you swwe in V to 3 significant figures Standard reduction potentials are as follows: MnO2() (aq) - Mn2+ (aq) + 4H20 (1) E° (V) - 1.21V Cu? → Cu(s) E' (V) - 0.34V (aq)
Did i get theae correct
11. Classify Nuolas estong bewe, wank base, strong aid wek xid, med en newer the following question. What is the plot 5.810*MNO tid? - 1273 105 45 138 12. Wat [A] is noeded to begls precipitating ApS00) from 20.053 M SO. solution? K of Ag. So, -16310 1.7x16M) 92310M 1x O'M 4 30x10*M*7x10M 13. What is the charge of fe in the complex [Fe(CNASOJI" 1 4 2 1 14. Classify HICHO, as a strong bawak...
Question 29 3 pts Which of the following statement(s) is (are) true when the cell operates spontaneously? (That is, when e are allowed to flow whichever way they want to) 1. The Pt electrode would be the anode 2. The measured voltage would be +57 V 3. The measured voltage would be +1.79 V 4. Electrons would move from right to left (---) 1 M Bro, (aq) 1 M Br" (aq) 1 MOH(aq) 1 M Mn(aq) 2 only 3 only...
In an electrochemical cell composed of Zn(s)|Zn2+|| Cu2+, Cu(s), Which species is the oxidizing agent? Which species is the reducing agent? In an electrochemical cell composed of Zn(s)| Zn2+1| Cu2+|Cu(s), Which electrode could be replaced with an inert electrode (such as Pt)? Which species is the anode? Which species is the cathode?
Suppose a chemist starts with an aqueous buffer that contains 0.05 mol of HCN and 0.07 mol of NaCN in a total volume of 1.00 L. What is the pH after 0.03 mol of OH is added to the buffer? a. 2.01 b. 9.46 c. 10.92 d. 10.01 e. 8.61 Calculate Eºcell for the following balanced redox reaction in acidic solution: 35024+ 2Cr(s) + 12 H+ + 3 SO2 (g) + 2Cr+3 + 6 H2O (acidic) a. +1.945 V b....
An electrochemical cell consists of a standard hydrogen electrode and a copper metal electrode. a. What is the potential of the cell at 25°C if the copper electrode is placed in a solution in which = 3.8 x 10-4 M? Ecell = V b. The copper electrode is placed in a solution of unknown (Cu?+]. The measured potential at 25°C is 0.206 v. What is (cu?+]? (Assume Cu²+ is reduced.) [Cu²+] = M
An electrochemical cell is expressed as Cu(s) | Cu^2+ (0.20 M) || I^- (0.10 M) | I_3^- (0.20 M) | Pt. I_3^- + 2e^- rightarrow 3I^-, E^0 = 0.535 V Cu^2+ + 2e^- rightarrow Cu(s) E^0 = 0.339 V Please answer the following questions: a. Write half-cell reactions at anode and at cathode. b. Write whole-cell reaction. c. Calculate the potential/voltage of the cell. d. Calculate equilibrium constant for this whole-cell reaction.
3. For the electrochemical cell: Pt(s) | H2(1 atm) | H'(I M)I| C u2(1 M) Cu(s), which one of the following changes will cause an increase in the cell voltage? A) Lower the H2(g) pressure. B) Increase the size/mass of the copper electrode. C) Lower the H (aq) concentration. D) Decrease the concentration of Cu* ion. E) None of the above. 2+
Table provided below for context
Please answer all parts that you can.
1. Which electrochemical cell had the greatest voltage? Identify the anode and the cathode for this pair, the measured cell potential, and the calculated Eºcell- 2. Which electrochemical cell had the smallest voltage? Identify the anode and the cathode for this pair, the measured cell potential, and the calculated Eºcell- 3. If the oxidation and reduction half-reactions are separated in a battery, this means the oxidizing agent is...
pos Calculate the cell potential at 25°C from an electrochemical (galvanie) cell using Cu as the anode and MnO2 as the cathode. Give you swwe in V to 3 significant figures Standard reduction potentials are as follows: MnO2() (aq) - Mn2+ (aq) + 4H20 (1) E° (V) - 1.21V Cu? → Cu(s) E' (V) - 0.34V (aq)
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