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please do both please please please QUESTION 15 When an aqueous solution of KBr is electrolyzed,...
An aqueous Snl, solution is electrolyzed under 1 bar pressure using platinum electrodes. (a) Write the half-reactions predicted to occur at the anode and cathode, based on the standard cell potentials given below. Standard Reduction Potentials (Volts) at 25°C 12(s) +2 — 21'(aq) 0.535 O2(g) + 4 H30* (aq) + 4 —6H20(1) 1.229 2 H20(1) + 2 € H2(g) + 2 OH'(aq) -0.828 Sn²+(aq) +2 € + Sn(s) -0.140 Half-reaction at anode: Half-reaction at cathode: (b) What is the expected...
QUESTION 13 Consider a voltaic cell based on the half-cells: Ag (aq) + e - Ag(s) E = +0.80 V Sn2+ (aq) + 2 e Sn(s) E = -0.14 V Identify the anode and give the cell voltage under standard conditions: O A Sn: Eºcell = -0.66 V B. Sn; Eºcell = 0.66 V O C. Ag: Eºcell = 0.67 V D. Ag: Eºcell = 0.94 V E. Sn; Eºcell = 0.94 V
1) Which of the following is the weakest oxidizing agent? Question options: a) Fe3+(aq) b) ClO2(g) c) I2(s) d) Fe(s) e)H2O2(aq) 2)A galvanic cell consists of one half-cell that contains Ag(s) and Ag+(aq), and one half-cell that contains Cu(s) and Cu2+(aq). What species are produced at the electrodes under standard conditions? Ag+(aq) + e- ? Ag(s) E° = +0.80 V Cu2+(aq) + 2 e- ? Cu(s) E° = +0.34 V Question 6 options: Cu(s) is formed at the cathode, and...
please help and answer all questions 4. What is the cell potential for Mn Mn2||Co2|Co, based on the standard potentials? (2 pts) Mn(s) +Co+2 (aq) → Co(s) + Mn+2(aq) 5. A Student constructed a Mg Mg2||Ag|Ag cell and measured a cell potential of 3.17 V. Calculate the cell potential of the Mg Mg2 half reaction. (2 pts) Mg(s) + 2Ag (aq) - 2Ag(s) + Mg(aq) 6. Will silver metal react spontaneously with HCl(aq) to produce H:()? Explain. (2 pts) 2Ag(8)...
Name SHOW ALL WORK. NO CREDIT UNLESS ALL WORK IS SHOWN. ROUNDING/SIG FIG ERRORS WILL BE PENALIZED. 1. Parts a-j of this question refer to the following cell at 298 K. Complete the diagram of the following voltaic cell: Silver and iron electrodes, aqueous Silver nitrate, aqueous iron (UI) nitrate, potassium nitrate salt bridge. Fe3+ (aq) + 3e → Fe (s) Ag (aq) + e - Ag(s) E° -0.040 V Eº= 0.795 V a. Identify the electrodes as Anode or...
the question is on the the bottom of the image! please answer the question is : using the measured potentials give the cell notations of at least 10 possible galvanic cells that do not use zinc in them. Eºcell (V) Cell +0.62 Anode: Zn(s) in ZnSO4(29) Cathode: Ca(s) in CuSO4(20) -0.51 Anode: Zn(s) in ZnSO4(29) Cathode: Ni(s) in NiSO4(aq) - 1.61 Anode Zn(s) in ZnSO4(29) Cathode: Mg(s) in MgSO4(aq) Anode Zn(s) in ZnSO4(0) Cathode: Mn() in MnSO4(aq) -0.42 Anode: Zn(s)...
Name SHOW ALL WORK. NO CREDIT UNLESS ALL WORK IS SHOWN. ROUNDING/SIG FIG ERRORS WILL BE PENALIZED. 1. Parts a-j of this question refer to the following cell at 298 K. Complete the diagram of the following voltaic cell: Silver and iron electrodes, aqueous Silver nitrate, aqueous iron (UI) nitrate, potassium nitrate salt bridge. Fe3+ (aq) + 3e → Fe (s) Ag (aq) + e - Ag(s) E° -0.040 V Eº= 0.795 V a. Identify the electrodes as Anode or...
Question 30 1 pts When an aqueous solution of sodium sulfate is electrolyzed, what are the expected products? Reduction Half-Reaction E° (V) Na" (aq) + = Na(s) -2.71 2H2O(l) + 2 H2(g) + 2OH(aq) -0.83 2H(aq) + 2 H2(g) 0.00 O2(g) + 4H(aq) + 40 = 2H 0(1) 1.23 S20,? (aq) + 20 = 250/?"(ag) 2.01 Na(s) and H2(g) Hz8), OH (aq), O2(g), and Haq) O2(g), H(aq), and Na(s) Hz(8), OH (ag), and Na(s) Hytg), OH (aq), and S,0, (ay)
Use the half-reactions below to produce a voltaic cell with the given standard cell potential. Standard Cell Potential Co- (aq) + e-Cot (aq) E = +1.82 V 1.53 V 2H(aq) + 2e-H2(g) E = +0.00 V Pb2+ (aq) + 2e-Pb(s) E = -0.13 V Fe (aq) + e-Fel+ (aq) E = +0.77 V Ag (aq) + e-Ag(s) E = +0.80 V Sn* (aq) + 2e Sne (aq) 20.13 V Cu- (aq) + e- Cu(aq) E = +0.15 V Zn²+ (aq)...
Please complete both! 1. When the following equation is balanced properly under acidic conditions, what are the coefficients of the species shown? ____MnO2 + ____H3AsO3 --------_____Mn2+ +_____ H3AsO4 Water appears in the balanced equation as a_____ (reactant, product, neither) with a coefficient of _____. (Enter 0 for neither.) How many electrons are transferred in this reaction?______ 2. A voltaic cell is constructed in which the anode is a Zn/Zn2+ half cell and the cathode is a Ag|Agt half cell. The...