```
55) What is the concentration of $\mathrm{Cu}^{2+}$ in the following cell at $25^{\circ} \mathrm{C}$ if the cell voltage is $0,952 \mathrm{~V}$ ?
$\begin{array}{l}
\mathrm{Zn}\left|\mathrm{Zn}^{2+}(0.125 \mathrm{M}) \| \mathrm{Cu}^{2+}(?)\right| \mathrm{Cu} \\
\mathrm{Cu}^{2+}+2 \mathrm{e}^{-} \rightarrow \mathrm{Cu}(\mathrm{s}) E^{\circ}=0.340 \mathrm{~V} \\
\mathrm{Zn}{ }^{2+}+2 \mathrm{e}^{-} \rightarrow \mathrm{Zn}(\mathrm{s}) E^{\circ}=-0.763 \mathrm{~V}
\end{array}$
A) $9 \times 10^{-4} \mathrm{M}$
B) $0.6 \mathrm{M}$
C) $1 \times 10^{-2} \mathrm{M}$
D) $1 \times 10^{-6} \mathrm{M}$
E) $4 \times 10^{-4} \mathrm{M}$
```

Sign in to unlock the answer

Answer from Sia

Posted 6 months ago

A

Key Concept

Nernst Equation

Explanation

The Nernst equation relates the cell potential to the standard electrode potential, temperature, and activities (or concentrations) of the chemical species involved in the redox reaction. It is used to calculate the unknown concentration of $\mathrm{Cu}^{2+}$ given the cell voltage.

Not the question you are looking for? Ask here!

Enter question by text

Enter question by image

Unlock Smarter Learning with AskSia Super!

Join Super, our all-in-one AI solution that can greatly improve your learning efficiency.

30% higher accuracy than GPT-4o

Entire learning journey support

The most student-friendly features

Study Other Question