How is standard cell potential calculated using standard electrode potential?
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Given the standard electrode potentials,
Answer: We have The lower the electrode potential, the stronger is the reducing agent. Therefore, the increasing order of the reducing power of the given metals is Ag < Hg <...
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Consult the table of standard electrode potentials and suggest three substances that can oxidise ferrous ions under suitable conditions.
Substances that are stronger oxidising agents than ferrous ions can oxidise ferrous ions. Fe2+ → Fe3+ + e-1 ; Eø = - 0.77 V This implies that the substances having higher reduction potentials than +0.77 V can...
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Which reference electrode is used to measure the electrode potential of other electrodes.
SHE, whose electrode potential is taken as zero.
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Why does the cell potential of mercury cell remain constant throughout its life ?
This is because the overall cell reaction does not involve any ion in the solution whose concentration changes during its life time
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Given the standard electrode potentials, K +/K = −2.93V, Ag+/Ag = 0.80V, Hg2+/Hg = 0.79V
The lower the reduction potential, the higher is the reducing power. The given standard electrode potentials increase in the order of K+/K < Mg2+/Mg < Cr3+/Cr < Hg2+/Hg < Ag+/Ag. Hence,...
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Entrepreneurs undertake (a) Calculated risk (b) High risk (c) Low risk (d) Moderate and calculated risk
(a) Risk refers to the probability that the realised profits are less than the expected profit. When an entrepreneur sets up a venture, he is not sure of its success. There...
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Standard reduction electrode potentials of three metals A, B and C are +0.5V, –3.0V and –1.2V respectively.
(a) : A B C E°red +0.5V –3.0V –1.2V More is the value of reduction potential, more is the tendency to get reduced, i.e....
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If a positive charge is shifted from a low-potential region to a high-potential region, the electric potential energy (a) increases
(a) increases
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Given that the standard electrode potential (E°) of metals are:
Increasing order of reducing power: Ag < Cu < Fe < Cr < Mg < K
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Express the relation among the conductivity of solution in the cell, the cell constant and the resistance of solution in the cell.
k (conductivity) = 1/ R(Resistance) x G (Cell constant)
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