Question

how is the concentration of hydroxide ions (OH-) affected when excess base is dissolved in a solution of sodium hydroxide? ​

Answer 1

Answer:

The concentration of OH- ions will increase.

But at one point,it will become saturated. No more base could be dissolved in it.

Answer 2

Answer:

when exess base is dissolved in sodium hydroxide solution then concentration of hydroxide ions will increase ↑(OH-)

Explanation:

as sodium hydroxide is already a strong base and as it is in diluted form then there is the release of OH- ions

and

now you have added more base in it so the OH- ions will increase more rapidly