Determine [OH−] in each base solution. If the acid is weak, indicate the value that [OH−] is less than.
(a) 2.5 M KOH
(b) 1.95 M NH3
(c) 0.225 M Ba(OH)2
(d) 1.8 M C5H5N
Here, we are going to calculate the concentration of [OH-] ion from each solution.
Strong base is a base which can dissociate completely in aqueous solution. For example : NaOH, Ba(OH)2
NaOH(s) ------> Na+ (aq) + OH-(aq)
Therefore, NaOH solution does not have any intake NaOH. Therefore, the concentration of the OH- ion is same as the concentration of base.