Kaplan General Chemistry: Chapter 10 Acids and Bases Flashcards
pka is the PH where:
HA = A-
low pka means
more acidic
low ka means
less acidic
high ka means
more acidic
formula for pka
pka = -log(Ka) pka= -log (n x10^m) pka = m-0.n
ka x kb = kw =
10^-14
equation for the equivalence point
NaVa = NbVb
Henderson-Hasselbach equation
pH = pka + log[A-]/[HA]
phosphorous acid compound. What is the conjugate base?
phosphorus acid : H3PO3
conjugate base: phosphite
phosphoric acid compound. what is the conjugate base
phosphoric acid H3PO4
conjugate base: phosphate
hypophosphorous acid
H3PO2
perphosphoric acid
H3PO5
How can PI be obtained for acidic amino acids? basic amino acids?
PI can be obtained by averaging 2 acidic pka values for acidic AAs, or 2 basic pka values for basic AAs.
what is the equivalence point for a strong acid and strong base titration?
7
equivalence point for strong acid and weak base equivalence point
less than 7