Question

What is the difference in conductivity between the 0.001 M sodium chloride and the 0.001 M ferric chloride?

Answer 1

The conductivity of a solution increases with the increase of concentration of ions in it.

Explanation:

The conductivity of a solution increases with the increase of concentration of ions in it.

In the case of a `0.001M` sodium chloride `NaCl` solution, the concentrations of ions are:

`[Na^+]=0.001M`
`[Cl^-]=0.001M`

However, for the `0.001M` solution of ferric chloride `FeCl_3`, the concentrations of ions are:

`[Fe^(3+)]=0.001M`
`[Cl^-]=0.003M`

Therefore, there are more ions in the solution of ferric chloride than that of sodium chloride, and thus the conductivity of the ferric chloride solution will be higher.