Question

Select all that apply.

Answer 1

Explanation:

A strong base is a base that completely dissociates into ions when dissolved in an aqueous solution.

Upon dissociation a base gives hydroxide or $OH^{-}$ ions. This, means that when we dissolve a base in a solution then we will get more number of hydroxide ions.

This will result in decrease in number of hydrogen ions into the solution.

Also, $NaOH \rightarrow Na^{+} + OH^{-}$

so,     $K_{b} = \frac{[Na^{+}][OH^{-}]}{NaOH}$

Therefore, we can see that more is the concentration of hydroxide ions more will be the value of $K_{b}$.

Thus, we can conclude that following are the characteristics of a strong base.

• many OH- ions.

• few H+ ions.

• large Kb and small Ka.

Answer 2

it is also

-many OH- ions

-few H+ ions

-large Kb and small Ka