Acid – Base Titrations Flashcards
A titration curve
a plot of pH vs. the amount of titrant
added
Strong Base and Strong Acid before equivalence
[OH-]= (fraction of OH- remaining)(concentration of OH-)(initial volume/final volume)
Strong Base and Strong Acid at equivalence
pH=7
Strong Base and Strong Acid after equivalence
[H+]=(concentration H+)(excess H+/total volume)
Weak Acid vs Strong Base before any base added
x^2/[A-]-x=Ka
Weak Acid vs Strong Base before equivalence
pH=pKa+log([A-]/[HA])
Weak Acid vs Strong Base half Ve
pH=pKa
Weak Acid vs Strong Base after equivalence
[OH-]=(initial conc OH-)(volume excess OH-/total volume)
Weak Acid-
Strong Base
pH at the equivalence point is
greater than 7.00
Weak
Base-Strong Acid
pH at the equivalence point is
less than 7.00