Electrochemistr...

What is corrosion?

What is the voltage of the voltaic cell $$Zn|Zn^{2+}||Cu^{2+}|Cu$$ at $$298\ K$$ if $$[Zn^{2+}] = 0.2\ M$$ and $$[Cu^{2+}] = 4.0\ M$$?
$$Cu^{2+} + 2e^{-}\rightarrow Cu\ E^{\circ} = +0.34V$$
$$Zn^{2+} + 2e^{-}\rightarrow Zn\ E^{\circ} = -0.76\ V$$
[Note: $$E = E^{\circ} - (0.0591/n)(\log Q)$$

In the diagram above, what is the half reaction that occurs at the cathode?

When current is passed through molten sodium chloride

When copper rod donates electrons to hydrogen ions, it gains ................. charge.

Copper electrode

Sulphate ions move towards

In electrolytic solutions, carrier of charge is

An electrolyte

In electrolysis