PLS only answer if you know what you\'re doing and if you are going to answer al
ID: 1002859 • Letter: P
Question
PLS only answer if you know what you're doing and if you are going to answer all of them, i got alot to do cuz of finals so i'd appreciate it if you answer them all correctly, thank you
1) Calculate the standard emf (electromotive force) for a voltaic cell whose cell reaction is represented by the balanced equation.
2H2O(l) H2(g) + H2O2(aq)
2) Calculate the standard cell potential for a galvanic cell whose cell reaction is represented by the balanced equation.
2Fe(s) + 3I2(s) 2Fe3+(aq) + 6I-(aq)
St. Red. Pot. (V)
3) For the voltaic cell shown, calculate the standard cell potential.
Pt(s) l H2O(l), H2O2(aq), H+(aq) ll H+(aq) l H2(g), Pt(s)
0
4)For the voltaic cell shown, calculate the standard cell potential.
Mn(s) l Mn2+(aq) ll F2(g) l F-(aq) l Pt(s)
St. Red. Pot. (V)
2.87
5)For the galvanic cell shown, calculate the Eo.
Fe(s) l Fe2+(aq) ll Cd2+(aq) l Cd(s)
St. Red. Pot. (V)
6) The value for the standard emf of a voltaic cell described by the cell notation is 1.88 V. Determine the value (V) of the standard half cell potential for the F2/F- couple.
Au(s) l AuCl4-(aq), Cl-(aq) ll F2(g) l F-(aq) l Pt(s)
St. Red. Pot. (V)
1) Calculate the standard emf (electromotive force) for a voltaic cell whose cell reaction is represented by the balanced equation.
2H2O(l) H2(g) + H2O2(aq)
2) Calculate the standard cell potential for a galvanic cell whose cell reaction is represented by the balanced equation.
2Fe(s) + 3I2(s) 2Fe3+(aq) + 6I-(aq)
St. Red. Pot. (V)
Fe3+/Fe -0.04 I2/I- 0.543) For the voltaic cell shown, calculate the standard cell potential.
Pt(s) l H2O(l), H2O2(aq), H+(aq) ll H+(aq) l H2(g), Pt(s)
0
4)For the voltaic cell shown, calculate the standard cell potential.
Mn(s) l Mn2+(aq) ll F2(g) l F-(aq) l Pt(s)
St. Red. Pot. (V)
Mn2+/Mn -1.18 F2/F-2.87
5)For the galvanic cell shown, calculate the Eo.
Fe(s) l Fe2+(aq) ll Cd2+(aq) l Cd(s)
St. Red. Pot. (V)
Fe2+/Fe -0.44 Cd2+/Cd -0.406) The value for the standard emf of a voltaic cell described by the cell notation is 1.88 V. Determine the value (V) of the standard half cell potential for the F2/F- couple.
Au(s) l AuCl4-(aq), Cl-(aq) ll F2(g) l F-(aq) l Pt(s)
St. Red. Pot. (V)
AuCl4-/Au 0.99 St. Red. Pot. (V) H2O2/H2O 1.78 H+/H2 0Explanation / Answer
1) Eocell = 0-1.78
= -1.78 V
2) oxidation : Fe-------------------> Fe+3 + 3e-
reduction : I2 + 2e- ---------------> 2I-
Eocell = Eored - Eo oxd
= 0.54 - (-0.04)
= 0.58 V
Eocell = 0.58 V
3) similarly
Eocell = -1.78 V
4)
Eocell = 2.78 - (-1.18)
= 3.96 V
5)
Eocell= -0.40 - (-0.44)
= 0.04 V
6)
Eocell= Eo red - Eo oxd
1.88 = Eo red - 0.99
Eo red = 2.87 V
Eo F2/F = 2.87 V
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