Using the following standard reduction potentials: half reaction E o , V K + + e
ID: 969824 • Letter: U
Question
Using the following standard reduction potentials:
half reaction
Eo, V
K+ + e- à K
-2.92
Ca2+ + 2 e- à Ca
-2.87
Zn2+ + 2 e- à Zn
-0.76
Sn2+ + 2 e- à Sn
-0.14
2 H+ + 2 e- à H2(g)
0.00
Ag+ + e- à Ag
+0.80
NO3- + 4 H+ + 3 e- à NO(g) + 2 H2O
+0.96
Au3+ + 3 e- à Au
+1.50
Ce4+ + e- à Ce3+
+1.70
The strongest oxidizing agent is ___________ and the strongest reducing agent is____________.
a. K; Ce4+ b. Ce3+; K+ c. Ce4+; K d. K; Ce3+ e. K+; Ce3+
half reaction
Eo, V
K+ + e- à K
-2.92
Ca2+ + 2 e- à Ca
-2.87
Zn2+ + 2 e- à Zn
-0.76
Sn2+ + 2 e- à Sn
-0.14
2 H+ + 2 e- à H2(g)
0.00
Ag+ + e- à Ag
+0.80
NO3- + 4 H+ + 3 e- à NO(g) + 2 H2O
+0.96
Au3+ + 3 e- à Au
+1.50
Ce4+ + e- à Ce3+
+1.70
Explanation / Answer
more the E0 value stronger the oxidizing agent
lesser the E0 value stronger the reducing agent
Ce+4 is strong oxidizing agent
K is strong reducing agent
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