Question Respond to the following questions21. A voltaic cell is constructed based on the oxidation of zinc metal and the reduction of silver cations. Solutions ofsilver nitrate and zinc nitrate also were used. Which statement is true regarding the direction of electron flow throughthe external wire?a) Electrons flow from left to right, from the Zincb) Electrons flow from right to left, to the Zincc) The zinc electrode will get larger as more zinc forms.d) Anions will flow through the “bridge” from the zinc sideto the silver side22. For the cell shown, the standard reduction potentials are +0.80 V for Ag+ and -0.76 V for Zn2+. Based on thereduction potentials, the electrode is where the reduction will occur and it is called the.a. Ag, cathodeb. Ag, anodec. Zn, cathoded. Zn, anodee. none of the above~ ~~~ ~ ~ ~ ~ ~~ ~ ~ ~ ~voltmetersaltbridgewire+ 1M Ag 1M Zn2 +A g Zn 5Cell Potentials23. What is E° for the following balanced reaction?Zn(s) + Pb2+(aq) ? Zn2+(aq) + Pb(s) Half-reaction Standard Reduction Potential Zn2+(aq) + 2e- ? Zn(s) -0.763 Pb2+(aq) + 2e- ? Pb(s) -0.126a. +0.637 V d. -0.889 Vb. -0.637 V e. +0.889 Vc. +1.274 V24. What is E° for the following balanced reaction?Al(s) + Fe3+(aq) ? Al3+(aq) + Fe(s) Half-reaction Standard Reduction Potential Fe3+(aq) + 2e- ? Fe(s) +0.771 Al3+(aq) + 2e- ? Al(s) -1.660a. +1.280 V d. -0.889 Vb. -2.431 V e. +0.889 Vc. +2.431 V25. What is E° for the following balanced reaction?4H+ (aq) + Fe(s) + NO3-(aq) ? Fe3+(aq) + NO(aq) + 2H2O(l)Standard Reduction PotentialNO3- + 4H+ + 3e- ? NO + 2H2O E° = +0.960 VFe3+ + 3e- ? Fe E° = +0.771 Va. +0.189 V d. -1.731 Vb. -0.189 V e. None of the abovec. +1.731 V26. Given the electrochemical reaction shown, if the standard reduction potential of Ag+ à Ag is +0.80 V, and thestandard reduction potential of Cu2+ à Cu is +0.34V, what is E° for the following?Cu / Cu 2+(aq) // Ag+(aq) / A E° = jQuery224037119390150200715_1608280020403? Va. +1.26 Vb. +0.85 Vc. +0.46 Vd. -0.37 Ve. none of the above27. Given the electrochemical reaction shown, if the standard reduction potential of Ni+2 à Ni is -0.26 V, and thestandard reduction potential of Al3+ à Al is -1.66V, what is E° for the following?Al / Al 3+(aq) // Ni+2(aq) / Ni E° = ??? Va. +1.26 Vb. +0.85 Vc. +0.46 Vd. +1.40 Ve. none of the above 628. Given the electrochemical reaction shown, if the standard reduction potential of Zn2+ à Zn is -0.76 V, what is thestandard reduction potential of Mg2+ à Mg?Mg / Mg 2+(aq) // Zn2+(aq) / Zn E° = +1.61 Va. -0.85 Vb. +0.85 Vc. +2.37 Vd. -2.37 Ve. none of the above29. Given the electrochemical retivitytion shown, if the standard reduction potential of Cu2+ à Cu is +0.34 V, what is thestandard reduction potential of Sn2+ à Sn?Sn / Sn 2+(aq) // Cu2+(aq) / Cu E° = +0.48 Va. -0.14 Vb. +0.14 Vc. +0.37 Vd. -0.37 Ve. none of the above30. Identify the strongest reducing agent based on the following half-reactions. The standard reduction potentials are listed.+1.22 V MnO2(s) + 4H+(aq) + 2e- ? Mn2+(aq) + 2H2O(l)+0.61 V Hg2SO4(s) + 2e- ? 2Hg(l) + SO42-(aq)-0.95 V SnO2(s) + 2H2O() + 4e- ? Sn(s) + 4OH-(aq)-1.48 V Cr(OH)3(s) + 3e- ? Cr(s) + 3OH-(aq)a. Cr d. Snb. MnO2 e. Hg Health Science Science Nursing Share QuestionEmailCopy link Comments (0)
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