Strong Bases. Strong bases either dissociate completely in solution to yield hydroxide ions, or deprotonate water to yield hydroxide ions.Click to see full answer. Moreover, do strong acids and bases dissociate completely in water?For all practical purposes, strong acids completely dissociate in water. That is the definition: A strong acid is an acid that completely dissociates in water. For all practical purposes, HCl is completely dissociated in solution. Strong acids have a large dissociation constant, so they dissociate completely in water.One may also ask, how do bases dissociate in water? NaOH is an Arrhenius base because it dissociates in water to give the hydroxide (OH-) and sodium (Na+) ions. An Arrhenius acid is therefore any substance that ionizes when it dissolves in water to give the H+, or hydrogen, ion. Acids provide the H+ ion; bases provide the OH- ion; and these ions combine to form water. Subsequently, one may also ask, why do strong bases dissociate in water? 14 = pH + pOH Acids and bases dissolve in water and, because they increase the concentration of one of the products of water self-ionization, either protons or hydroxide ions, they suppress water dissociation.What happens when a weak base is dissolved in water?When a base is is dissolved in water dissociates to form a conjugate acid and conjugate base. The conjugate base and acid are ions. Weak bases also have their conjugate bases with more strength than the conjugate acid but the difference between them is very less.