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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If the electrode potential of $Zn^{2+} | Zn$ is $-0.76 \, V$ and the potential of $Cu^{2+} | Cu$ is $0.34 \, V$,what will be the $EMF$ of the cell formed by both electrodes in $V$?
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View Solution$Cr_2O_7^{2-} + I^{-} \to I_2 + Cr^{3+}$
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$E^0_{cell} = 0.79 \ V$
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