What determines a Strong Base and a Weak Base Strong Bases and Weak Bases :The strength of a base is determined by the amount of hydroxide ions (OH–) that the base provides when dissolved in water.Some of the bases, when dissolved in water, get almost completely dissociated to provide hydroxide ions. These bases are called strong bases. (Bases soluble in water are … [Read more...] about What determines a Strong Base and a Weak Base