275902 From the following data at $25^{\circ} \mathrm{C}$
$\begin{aligned}
& \mathrm{Cr}^{3+}{ }_{(\mathrm{aq})}+\mathrm{e}^{-} \rightarrow \mathrm{Cr}^{2+}{ }_{(\mathrm{aq})}, \mathrm{E}^{\mathrm{o}}=-0.424 \mathrm{~V} \\
& \mathrm{Cr}^{2+}{ }_{(\mathrm{aq})}+2 \mathrm{e}^{-} \rightarrow \mathrm{Cr}_{(\mathrm{s})}, \mathrm{E}^{\mathrm{o}}=-0.900 \mathrm{~V}
\end{aligned}$
Find $\mathrm{E}^{0}$ at $25^{\circ} \mathrm{C}$ for the reaction,
$\mathrm{Cr}^{3+}(\mathrm{aq})+3 \mathrm{e}^{-} \rightarrow \mathrm{Cr}_{(\mathrm{s})}$

275906 The standard reduction potential $E^{0}$ for halfreactions are
$\mathrm{Zn} \rightarrow \mathrm{Zn}^{2+}+2 \mathrm{e}^{-} ; \mathrm{E}^{0}=+0.76 \mathrm{~V}$
$\mathrm{Fe} \rightarrow \mathrm{Fe}^{2+}+2 \mathrm{e}^{-} ; \mathrm{E}^{0}=+0.41 \mathrm{~V}$
The EMF of the cell reaction
$\mathrm{Fe}^{2+}+\mathrm{Zn} \rightarrow \mathrm{Zn}^{2+}+\mathrm{Fe}$ is

275907 Standard electrode potential of half cell reactions are given below:
$\begin{aligned}
& \mathrm{Cu}^{2+}+2 \mathrm{e}^{-} \rightarrow \mathrm{Cu} ; \mathrm{E}^{0}=0.34 \mathrm{~V} \\
& \mathrm{Zn}^{2+}+2 \mathrm{e}^{-} \rightarrow \mathrm{Zn} ; \mathrm{E}^{0}=-\mathbf{0 . 7 6} \mathrm{V}
\end{aligned}$
What is the EMF of the cell?

275908 The standard electrode potential for half-cell reduction of $X_{2}(\mathrm{~g})$ and $Y_{2}(\mathrm{~g})$ are 2.87 and 1.36 $E^{0} / V$. Which one of the following is correct?

275902 From the following data at $25^{\circ} \mathrm{C}$
$\begin{aligned}
& \mathrm{Cr}^{3+}{ }_{(\mathrm{aq})}+\mathrm{e}^{-} \rightarrow \mathrm{Cr}^{2+}{ }_{(\mathrm{aq})}, \mathrm{E}^{\mathrm{o}}=-0.424 \mathrm{~V} \\
& \mathrm{Cr}^{2+}{ }_{(\mathrm{aq})}+2 \mathrm{e}^{-} \rightarrow \mathrm{Cr}_{(\mathrm{s})}, \mathrm{E}^{\mathrm{o}}=-0.900 \mathrm{~V}
\end{aligned}$
Find $\mathrm{E}^{0}$ at $25^{\circ} \mathrm{C}$ for the reaction,
$\mathrm{Cr}^{3+}(\mathrm{aq})+3 \mathrm{e}^{-} \rightarrow \mathrm{Cr}_{(\mathrm{s})}$

275906 The standard reduction potential $E^{0}$ for halfreactions are
$\mathrm{Zn} \rightarrow \mathrm{Zn}^{2+}+2 \mathrm{e}^{-} ; \mathrm{E}^{0}=+0.76 \mathrm{~V}$
$\mathrm{Fe} \rightarrow \mathrm{Fe}^{2+}+2 \mathrm{e}^{-} ; \mathrm{E}^{0}=+0.41 \mathrm{~V}$
The EMF of the cell reaction
$\mathrm{Fe}^{2+}+\mathrm{Zn} \rightarrow \mathrm{Zn}^{2+}+\mathrm{Fe}$ is

275907 Standard electrode potential of half cell reactions are given below:
$\begin{aligned}
& \mathrm{Cu}^{2+}+2 \mathrm{e}^{-} \rightarrow \mathrm{Cu} ; \mathrm{E}^{0}=0.34 \mathrm{~V} \\
& \mathrm{Zn}^{2+}+2 \mathrm{e}^{-} \rightarrow \mathrm{Zn} ; \mathrm{E}^{0}=-\mathbf{0 . 7 6} \mathrm{V}
\end{aligned}$
What is the EMF of the cell?

275908 The standard electrode potential for half-cell reduction of $X_{2}(\mathrm{~g})$ and $Y_{2}(\mathrm{~g})$ are 2.87 and 1.36 $E^{0} / V$. Which one of the following is correct?

275902 From the following data at $25^{\circ} \mathrm{C}$
$\begin{aligned}
& \mathrm{Cr}^{3+}{ }_{(\mathrm{aq})}+\mathrm{e}^{-} \rightarrow \mathrm{Cr}^{2+}{ }_{(\mathrm{aq})}, \mathrm{E}^{\mathrm{o}}=-0.424 \mathrm{~V} \\
& \mathrm{Cr}^{2+}{ }_{(\mathrm{aq})}+2 \mathrm{e}^{-} \rightarrow \mathrm{Cr}_{(\mathrm{s})}, \mathrm{E}^{\mathrm{o}}=-0.900 \mathrm{~V}
\end{aligned}$
Find $\mathrm{E}^{0}$ at $25^{\circ} \mathrm{C}$ for the reaction,
$\mathrm{Cr}^{3+}(\mathrm{aq})+3 \mathrm{e}^{-} \rightarrow \mathrm{Cr}_{(\mathrm{s})}$

275906 The standard reduction potential $E^{0}$ for halfreactions are
$\mathrm{Zn} \rightarrow \mathrm{Zn}^{2+}+2 \mathrm{e}^{-} ; \mathrm{E}^{0}=+0.76 \mathrm{~V}$
$\mathrm{Fe} \rightarrow \mathrm{Fe}^{2+}+2 \mathrm{e}^{-} ; \mathrm{E}^{0}=+0.41 \mathrm{~V}$
The EMF of the cell reaction
$\mathrm{Fe}^{2+}+\mathrm{Zn} \rightarrow \mathrm{Zn}^{2+}+\mathrm{Fe}$ is

275907 Standard electrode potential of half cell reactions are given below:
$\begin{aligned}
& \mathrm{Cu}^{2+}+2 \mathrm{e}^{-} \rightarrow \mathrm{Cu} ; \mathrm{E}^{0}=0.34 \mathrm{~V} \\
& \mathrm{Zn}^{2+}+2 \mathrm{e}^{-} \rightarrow \mathrm{Zn} ; \mathrm{E}^{0}=-\mathbf{0 . 7 6} \mathrm{V}
\end{aligned}$
What is the EMF of the cell?

275908 The standard electrode potential for half-cell reduction of $X_{2}(\mathrm{~g})$ and $Y_{2}(\mathrm{~g})$ are 2.87 and 1.36 $E^{0} / V$. Which one of the following is correct?

275902 From the following data at $25^{\circ} \mathrm{C}$
$\begin{aligned}
& \mathrm{Cr}^{3+}{ }_{(\mathrm{aq})}+\mathrm{e}^{-} \rightarrow \mathrm{Cr}^{2+}{ }_{(\mathrm{aq})}, \mathrm{E}^{\mathrm{o}}=-0.424 \mathrm{~V} \\
& \mathrm{Cr}^{2+}{ }_{(\mathrm{aq})}+2 \mathrm{e}^{-} \rightarrow \mathrm{Cr}_{(\mathrm{s})}, \mathrm{E}^{\mathrm{o}}=-0.900 \mathrm{~V}
\end{aligned}$
Find $\mathrm{E}^{0}$ at $25^{\circ} \mathrm{C}$ for the reaction,
$\mathrm{Cr}^{3+}(\mathrm{aq})+3 \mathrm{e}^{-} \rightarrow \mathrm{Cr}_{(\mathrm{s})}$

275906 The standard reduction potential $E^{0}$ for halfreactions are
$\mathrm{Zn} \rightarrow \mathrm{Zn}^{2+}+2 \mathrm{e}^{-} ; \mathrm{E}^{0}=+0.76 \mathrm{~V}$
$\mathrm{Fe} \rightarrow \mathrm{Fe}^{2+}+2 \mathrm{e}^{-} ; \mathrm{E}^{0}=+0.41 \mathrm{~V}$
The EMF of the cell reaction
$\mathrm{Fe}^{2+}+\mathrm{Zn} \rightarrow \mathrm{Zn}^{2+}+\mathrm{Fe}$ is

275907 Standard electrode potential of half cell reactions are given below:
$\begin{aligned}
& \mathrm{Cu}^{2+}+2 \mathrm{e}^{-} \rightarrow \mathrm{Cu} ; \mathrm{E}^{0}=0.34 \mathrm{~V} \\
& \mathrm{Zn}^{2+}+2 \mathrm{e}^{-} \rightarrow \mathrm{Zn} ; \mathrm{E}^{0}=-\mathbf{0 . 7 6} \mathrm{V}
\end{aligned}$
What is the EMF of the cell?

275908 The standard electrode potential for half-cell reduction of $X_{2}(\mathrm{~g})$ and $Y_{2}(\mathrm{~g})$ are 2.87 and 1.36 $E^{0} / V$. Which one of the following is correct?