buffer solution
aqueous solution consisting of a mixture of a weak acid and its conjugate base, which resists (to a limited degree) pH change when a strong acid or base is added
en-GB/ˈbʌfə səˈluːʃən/
en-US/ˈbʌfɚ səˈluʃən/
aqueous solution consisting of a mixture of a weak acid and its conjugate base, which resists (to a limited degree) pH change when a strong acid or base is added