Which of the following reactions is spontaneous in the reverse direction as written? I) Ni+2(aq) +...
Which of the following reactions is spontaneous in the reverse direction as written?
I) Ni+2(aq) + Pb(s) → Ni(s) + Pb+2(aq) Ecell° = -0.124 V
II) Pb+2(aq) + H2(g) → Pb(s) + 2H+(aq) Ecell° = -0.126 V
III) Cu+2(aq) + Fe(s) → Cu(s) + Fe+2(aq) Ecell° = +0.78 V
IV) Zn+2(aq) + 2Ag(s) → Zn+2(aq) + 2Ag+(aq) Ecell° = -1.562 V
a. I, II & IV
b. IV
c. III
d. II
e. I
f. II & IV
g. I & II
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Which of the following reactions is spontaneous in the reverse
direction as written?
I) Ni+2(aq) +...
Which of the redox equations do you expect to occur spontaneously in the reverse direction? Ca^2+...
Which of the redox equations do you expect to occur spontaneously in the reverse direction? Ca^2+ (aq) + Zn(s) rightarrow Ca(s) + Zn^2+(aq) 2Ag^+ (aq) + Ni(s) rightarrow 2Ag(s) + Ni^2+ (aq) Fe(s) + Mn^2+ (aq) rightarrow Fe^2+ (aq) + Mn(s) 2 Al(s) + 3 Pb^2+ (aq) rightarrow 2 Al^3+ (aq) + 3 Pb (s)
1) Which of the following oxidation-reduction reactions will be spontaneous in the direction written? Select all...
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38. The following redox half reactions are combined in a voltaic cell. Which reaction occurs at...
38. The following redox half reactions are combined in a voltaic cell. Which reaction occurs at the cathode and what is the Eceu? Fe2+(aq) + 2e → Fe(s) E°=-0.44 V Cu²+(aq) + 2e → Cu(s) E°= 0.34 V a) b) c) d) Cu2+(aq) + 2e → Cu(s), Ecell = 0.78 V Fe2+(aq) + 2e → Fe(s), Ecel = 0.78 V Fe2+(aq) + 2e → Fe(s), Ecell =-0.10 V Cu²+(aq) + 2e → Cu(s), Ecel = 0.10 V Cu²+ (aq) +...
Consider a voltaic (galvanic) cell with the following metal electrodes. Identify which metal is the cathode and which i...
Consider a voltaic (galvanic) cell with the following metal electrodes. Identify which metal is the cathode and which is the anode, and calculate the cell potential. (Use the table of Standard Electrode Potentials.) (a) Cd(II) and Sc(III) Cathode: Cd(II) Sc(III) Anode: Cd(II) Sc(III) Ecell 42 (b) Pb(II) and In(III) Cathode: Pb(II) In(III) Anode: Pb(II) In(III) Ecell - (c) Ni(II) and Zr(IV) Cathode: Ni(II) Zr(IV) Anode: Ni(II) Zr(IV) Ecell- Supporting Materials We were unable to transcribe this imageAGº and Eº can...
Based on the activity series, which one of the reactions below will occur? Most reactive to...
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1- Consider the following redox reaction: Fe(s) + Cu2+(aq) --> Fe2+(aq) + Cu(s) EoCell =...
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4. Write a balanced equation from each cell notation, then calculate thee of the cell, is...
4. Write a balanced equation from each cell notation, then calculate thee of the cell, is it spontaneous or nonspontaneous? A. Cr(s) Crot || Cui Cu(s) B. Al(s) Al* | Ce Ce Pt C. Cu (s) Cu? || Al Al (s) Useful information: F= 96485 J/V mol electrons, AG ----F-Ecell AG --RTINK: Ece 0.0592/n*logK; EcellEcett -0.0592/n*logQ Ce (aq) + Ag+ (aq) + e Fet (aq) + Cu" (aq) + Cu (aq) + 2e 2H(aq) + 2 Pb (aq) + 2e...
Separate galvanic cells are made from the following half-cells: cell 1: H+(aq)/H2(g) and Pb2+(aq)/Pb(s) cell 2:...
Separate galvanic cells are made from the following half-cells: cell 1: H+(aq)/H2(g) and Pb2+(aq)/Pb(s) cell 2: Fe2+(aq)/Fe(s) and Zn2+(aq)/Zn(s) Which of the following is correct for the working cells? Standard reduction potentials, 298 K, Aqueous Solution (pH = 0): Cl2(g) + 2e --> 2C1-(aq); E° = +1.36 V Fe3+(aq) + e --> Fe2+(aq); E° = +0.77 V Cu2+(aq) + 2e --> Cu(s); E° = +0.34 V 2H+(aq) + 2e --> H2(g); E° = 0.00 V Pb2+(aq) + 2e --> Pb(s);...
Determine which of the following pairs of reactants will result in a spontaneous Pb2+(aq) + 2...
Determine which of the following pairs of reactants will result in a spontaneous Pb2+(aq) + 2 e- - Pb(s) Eº = -0.13 V Cu+(aq) + e- - Cu(s) E = 0.52 V Ag+ (aq) + e Ag(s) Eº = 0.80 V Br2(+2 e 2 Br-(s) E° = 1.09 V reaction at 25°C. Li+(aq) + e- - Li(s) E° = -3.04 V A13+(aq) + 3 e- → Al(s) E° = -1.66 V Fe3+(aq) + 3 e" -> Fe(s) E° = -0.036...
Based on the sign of the standard cell potential, Ecell, classify these reactions as spontaneous or...
Based on the sign of the standard cell potential, Ecell, classify these reactions as spontaneous or nonspontaneous as written. Assume standard conditions. Refer to the list of standard reduction potentials. Spontaneous as written Nonspontaneous as written Answer Bank Au + (aq) + 3 Ag(s) Au(s) + 3 Ag* (aq) 1,(s) + Cu() — 21(aq) + Cu2+ (aq) Ni2+ (aq) + Pb(s) Ni(s) + Pb2+ (aq)
Which of the redox equations do you expect to occur spontaneously in the reverse direction? Ca^2+ (aq) + Zn(s) rightarrow Ca(s) + Zn^2+(aq) 2Ag^+ (aq) + Ni(s) rightarrow 2Ag(s) + Ni^2+ (aq) Fe(s) + Mn^2+ (aq) rightarrow Fe^2+ (aq) + Mn(s) 2 Al(s) + 3 Pb^2+ (aq) rightarrow 2 Al^3+ (aq) + 3 Pb (s)
38. The following redox half reactions are combined in a voltaic cell. Which reaction occurs at the cathode and what is the Eceu? Fe2+(aq) + 2e → Fe(s) E°=-0.44 V Cu²+(aq) + 2e → Cu(s) E°= 0.34 V a) b) c) d) Cu2+(aq) + 2e → Cu(s), Ecell = 0.78 V Fe2+(aq) + 2e → Fe(s), Ecel = 0.78 V Fe2+(aq) + 2e → Fe(s), Ecell =-0.10 V Cu²+(aq) + 2e → Cu(s), Ecel = 0.10 V Cu²+ (aq) +...
Consider a voltaic (galvanic) cell with the following metal electrodes. Identify which metal is the cathode and which is the anode, and calculate the cell potential. (Use the table of Standard Electrode Potentials.) (a) Cd(II) and Sc(III) Cathode: Cd(II) Sc(III) Anode: Cd(II) Sc(III) Ecell 42 (b) Pb(II) and In(III) Cathode: Pb(II) In(III) Anode: Pb(II) In(III) Ecell - (c) Ni(II) and Zr(IV) Cathode: Ni(II) Zr(IV) Anode: Ni(II) Zr(IV) Ecell- Supporting Materials We were unable to transcribe this imageAGº and Eº can...
Based on the activity series, which one of the reactions below will occur? Most reactive to least reactive Mn> Zn > Cr> Fe > Co > Ni > Sn> Pb > H2 > Cu > Ag > Hg > Pt > Au © Zn (s) + Mnl2 (aq) → Zn2 (aq) + Mn (5) SnCl2 (aq) + Cu (s) — Sn (s) + CuCl2 (aq) O 2AgNO3(aq) + Pb (s) — 2Ag (s) + Pb(NO3)2 (aq) O 3Hg (1) +...
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Based on the sign of the standard cell potential, Ecell, classify these reactions as spontaneous or nonspontaneous as written. Assume standard conditions. Refer to the list of standard reduction potentials. Spontaneous as written Nonspontaneous as written Answer Bank Au + (aq) + 3 Ag(s) Au(s) + 3 Ag* (aq) 1,(s) + Cu() — 21(aq) + Cu2+ (aq) Ni2+ (aq) + Pb(s) Ni(s) + Pb2+ (aq)
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