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19 Nov 2019
Name: 6. Which of the following statements is true concerning the electrochemical cell depicted below? Mn2+(aq) + 2e Mn(s); Eo =-1.19 V a. The cell is at equilibrium. b. The cell reaction is spontaneous with a standard cell potential of 1.72V. c· The cell reaction is spontaneous with a standard cell potential of 4.1 V d· The cell reaction is nonspontaneous with a standard cell potential of 4.1 V eã The cell reaction is nonspontaneous with a standard cell potential of-1.72V Which of the following cell reactions would require the use of an inert electrode? a. 7. b. c. d. e. Fe(s) + 2Ag+(aq) â 2Ag(s) + Fe2+(aq) 3 Cu(s) + 2Au3+(aq) â 3Cu2+ + 2Au(s) Fe(s) + 2Ag+(aq) â Fe2+(aq) + 2Ag(s) Fe(s) + 2MnO2(s) + 2NH4+(aq) â Fe2+(aq) + Mn2O3(s) + 2NH,(aq) + H20() 3Zn2+(aq) + 2Al(s) â 3Zn(s) + 2AP"(aq)
Name: 6. Which of the following statements is true concerning the electrochemical cell depicted below? Mn2+(aq) + 2e Mn(s); Eo =-1.19 V a. The cell is at equilibrium. b. The cell reaction is spontaneous with a standard cell potential of 1.72V. c· The cell reaction is spontaneous with a standard cell potential of 4.1 V d· The cell reaction is nonspontaneous with a standard cell potential of 4.1 V eã The cell reaction is nonspontaneous with a standard cell potential of-1.72V Which of the following cell reactions would require the use of an inert electrode? a. 7. b. c. d. e. Fe(s) + 2Ag+(aq) â 2Ag(s) + Fe2+(aq) 3 Cu(s) + 2Au3+(aq) â 3Cu2+ + 2Au(s) Fe(s) + 2Ag+(aq) â Fe2+(aq) + 2Ag(s) Fe(s) + 2MnO2(s) + 2NH4+(aq) â Fe2+(aq) + Mn2O3(s) + 2NH,(aq) + H20() 3Zn2+(aq) + 2Al(s) â 3Zn(s) + 2AP"(aq)
Beverley SmithLv2
29 May 2019