Give the uses of the standard hydrogen electrode $(SHE)$.
(N/A) The standard hydrogen electrode $(SHE)$ is used as a reference electrode to measure the standard electrode potential of other half-cells.
$1$. It serves as a primary reference electrode with an assigned potential of $0.00 \ V$ at all temperatures.
$2$. It is used to determine the standard reduction potential of various metal/metal-ion couples by connecting them to the $SHE$ in an electrochemical cell.
$3$. It helps in constructing the electrochemical series by providing a baseline for comparison.
$1$. It serves as a primary reference electrode with an assigned potential of $0.00 \ V$ at all temperatures.
$2$. It is used to determine the standard reduction potential of various metal/metal-ion couples by connecting them to the $SHE$ in an electrochemical cell.
$3$. It helps in constructing the electrochemical series by providing a baseline for comparison.
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Standard potential of electrode reaction $Cu^{2+}_{(aq)} + 2e^{-} \rightarrow Cu_{(s)}$ is $+0.34 \ V$. What is the standard potential of the reaction $2Cu_{(s)} \rightarrow 2Cu^{2+}_{(aq)} + 4e^{-}$?
Given $E^{0}_{Fe^{3+}|Fe} = -0.036 \, V$ and $E^{0}_{Fe^{2+}|Fe} = -0.439 \, V$,the standard electrode potential for the reaction $Fe^{3+}_{(aq)} + e^{-} \rightarrow Fe^{2+}_{(aq)}$ is ........... $V$.
Difficult
View SolutionFor the given cell reaction $Fe^{2+}_{(aq)} + Ag^{+}_{(aq)} \rightarrow Fe^{3+}_{(aq)} + Ag_{(s)}$,the standard cell potential is:
Given:
$Ag^{+} + e^{-} \rightarrow Ag \quad E^0 = x \ V$
$Fe^{2+} + 2e^{-} \rightarrow Fe \quad E^0 = y \ V$
$Fe^{3+} + 3e^{-} \rightarrow Fe \quad E^0 = z \ V$
Given:
$Ag^{+} + e^{-} \rightarrow Ag \quad E^0 = x \ V$
$Fe^{2+} + 2e^{-} \rightarrow Fe \quad E^0 = y \ V$
$Fe^{3+} + 3e^{-} \rightarrow Fe \quad E^0 = z \ V$
DifficultJEE MAIN 2025
View SolutionWhich reference electrode is used to measure the electrode potential of other electrodes?
Medium
View SolutionConsider the following cell:
$Zn_{(s)} \mid Zn^{2+}_{(1M)} \parallel KCl_{(sat)} \mid Hg_2Cl_{2(paste)} \mid Hg$
$E^{\circ}_{cell} = 1.007 \ V$ and $E^{\circ}_{calomel} = 0.242 \ V$
What is the standard potential of $Zn$ (in $V$)?
$Zn_{(s)} \mid Zn^{2+}_{(1M)} \parallel KCl_{(sat)} \mid Hg_2Cl_{2(paste)} \mid Hg$
$E^{\circ}_{cell} = 1.007 \ V$ and $E^{\circ}_{calomel} = 0.242 \ V$
What is the standard potential of $Zn$ (in $V$)?
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