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Can someone explain the difference in calculating concentrations for a strong acid or base vs. calculating concentration for a weak acid or base?
Any acid that dissociates 100% into ions is a strong acid. If it does not dissociate 100%, it is a weak acid. Same goes for strong and weak bases.
For strong acids, the concentration of H+ ions generally equals the concentration of the strong acid. For strong bases, the concentration of OH- ions generally equals the concentration of the strong base. However, for weak acids and bases, their respective concentrations of H+ and OH- ions don't equal their own concentrations because they only partially dissociate. This usually necessitates the usage of ICE tables and pKa or Ka values.
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