Thanks for your help ! :D 13. The standard reduction potentials for four half-cells at 298 K are given in Table 1.Table 1Half-cell equation» H2O2 (aq)+0.682H* (ag) + O2 (g) + 2eН-02 (аq) + 2H* (аq) + 2е —> 2H-0 ()Cl2 (g) + 2eMnO2 (s) + 4H" (aq) + 2e"-+1.772Cl (ag)+1.36Mn* (aq) +2H2O (I)+1.22In which of the following mixture there is NO effervescence observed?А. Н-О: (аq) + Сl- (8)B. acidified H202+ MnO2 (s)C. NaCl (aq) + acidified H2O2 (aq)D. NaCl (ag) + acidified MnO2 (s)

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Answered: D. NaCl (aq) + acidified MnO2 (s)

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D. NaCl (aq) + acidified MnO2 (s)

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter17: Electrochemistry And Its Applications

Section: Chapter Questions

Problem 50QRT

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Thanks for your help ! :D

13. The standard reduction potentials for four half-cells at 298 K are given in Table 1.
Table 1
Half-cell equation
» H2O2 (aq)
+0.68
2H* (ag) + O2 (g) + 2e
Н-02 (аq) + 2H* (аq) + 2е —> 2H-0 ()
Cl2 (g) + 2e
MnO2 (s) + 4H" (aq) + 2e"-
+1.77
2Cl (ag)
+1.36
Mn* (aq) +2H2O (I)
+1.22
In which of the following mixture there is NO effervescence observed?
А. Н-О: (аq) + Сl- (8)
B. acidified H202+ MnO2 (s)
C. NaCl (aq) + acidified H2O2 (aq)
D. NaCl (ag) + acidified MnO2 (s)

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