How is the concentration of hydroxide ions (OH–) affected when excess base is dissolved in a solution of sodium hydroxide ?

How is the concentration of hydroxide ions (OH–) affected when exces

1.	How is the concentration of hydroxide ions (OH–) affected when excess base is dissolved in a solution of sodium hydroxide ?
Answer» centration of hydroxide ions will increase when excess base is DISSOLVED in a SOLUTION of sodium hydroxide because the amount of hydroxide ions per unit VOLUME increases. This happens only when base ADDED dissolves in WATER.