(B) The galvanic cell can be represented as: $Mg | Mg^{2+} || Cu^{2+} | Cu$. The standard cell potential is given by the formula: $E^{\circ}_{cell} =

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(B) The galvanic cell can be represented as: $Mg | Mg^{2+} || Cu^{2+} | Cu$. The standard cell potential is given by the formula: $E^{\circ}_{cell} = E^{\circ}_{cathode} - E^{\circ}_{anode}$. Here,$E^{\circ}_{cathode} = E^{\circ}_{Cu^{2+}/Cu} = 0.34 \ V$ and $E^{\circ}_{cell} = 2.71 \ V$. Substituting these values: $2.71 \ V = 0.34 \ V - E^{\circ}_{Mg^{2+}/Mg}$. Therefore,$E^{\circ}_{Mg^{2+}/Mg} = 0.34 \ V - 2.71 \ V = -2.37 \ V$.

Class 12 Chemistry Electrochemistry Electrode potential and ECell

Easy

$Mg^{2+}$ displaces hydrogen from acids but copper does not. $A$ galvanic cell prepared by combining $Cu/Cu^{2+}$ and $Mg/Mg^{2+}$ has an $EMF$ of $2.71 \ V$ at $298 \ K$. If the potential of copper electrode is $0.34 \ V$,what is the reduction potential of $Mg$ electrode?

TS EAMCET 2020 All TS EAMCET

A
$+3.05 \ V$
B
$-2.37 \ V$
C
$+2.37 \ V$
D
$2 \ V$

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Electrochemistry

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Electrode potential and ECell

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The $E^{0}_{Red}$ values of $A, B, C,$ and $D$ are $0.8 \, V, 0.79 \, V, 0.34 \, V,$ and $-2.37 \, V$ respectively. Which element can displace the other three from their salt solutions?

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$Mg^{2+}$ displaces hydrogen from acids but copper does not. $A$ galvanic cell prepared by combining $Cu/Cu^{2+}$ and $Mg/Mg^{2+}$ has an $EMF$ of $2.71 \ V$ at $298 \ K$. If the potential of copper electrode is $0.34 \ V$,what is the reduction potential of $Mg$ electrode?

Similar Questions

Will $Fe_{(s)}$ be oxidised to $Fe^{2+}$ by the reaction with $1 \ M$ $HCl$ ($E^o$ for $Fe/Fe^{2+} = +0.44 \ V$)?

Arrange the following metals in the order in which they displace each other from the solution of their salts: $Al, Cu, Fe, Mg$ and $Zn$.

Which expression represents the cell potential $(E_{cell})$?

The standard electrode potential $(E^{\circ}_{M^{3+}/M^{2+}})$ for $V$,$Cr$,$Mn$,and $Co$ are $-0.26 \ V$,$-0.41 \ V$,$+1.57 \ V$,and $+1.97 \ V$,respectively. The metal ions which can liberate $H_2$ from a dilute acid are

The $E^{0}_{Red}$ values of $A, B, C,$ and $D$ are $0.8 \, V, 0.79 \, V, 0.34 \, V,$ and $-2.37 \, V$ respectively. Which element can displace the other three from their salt solutions?

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