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pH, buffers etc
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Total cards: 8•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (8)
#1
Front (Question)
why doesn’t the pH of buffer solutions change when water is added?
Back (Answer)
the change in [H+] and the change in [OH-] is proportional
#2
Front (Question)
Ka expression
Back (Answer)
Ka = [H+][A-]/[HA]
#3
Front (Question)
Kw expression
Back (Answer)
Kw = [H+][OH-]
#4
Front (Question)
Kw name
Back (Answer)
ionic product of water
#5
Front (Question)
pH formula
Back (Answer)
pH = -log[H+]
#6
Front (Question)
how to calculate pH of bases?
Back (Answer)
monobasic: [OH-] = [XOH] dibasic: 2[OH-] = [X(OH)2] [H+] = Kw/[OH-] pH = -log([H+])
#7
Front (Question)
assumptions when using Ka expressions
Back (Answer)
• salt and H+ concentrations are equal • dissociation of water is negligible
#8
Front (Question)
equivalence point
Back (Answer)
point in a titration at which the volume of one solution has reacted exactly with the volume of the second solution