Question

NaOH is a strong base. What two ions do you expect to find in a solution of NaOH?

Na and OH
Na+ and OH-
NaO- and H+
NaH+ and O-

Answer 1

According to Arrhenius concept a base is one which can donate hydroxide ion in its aqueous solution.

Here NaOH is a base as it can donate OH-.

As NaOH is a strong base it will have very high dissociation constant.

Due to high dissociation constant if will almost completely dissociate into sodium ions and hydroxide ions.

`NaOH  --> Na^(+)(aq)  + OH^(-)(aq)`

Thus in a solution of NaOH we will expect the following two ions

Na^{+} + OH^{-}[/tex]