chem exam 3 Flashcards
what is the relationship between Ka and pKa
inverse, so larger Ka = smaller pKa
what does Ka show
acid strength
what is a bronstead acid/base
acid can donate a proton
base can accept a proton
how does bond strenght effect acid strength in binary acids
stronger bonds= weaker acids
what are binary acids
only composed of 2 elements
what are polyatomic acids
composed of 3+ elements
how does electronegativity effect acidity
electronegativity increases then acid strength increases
what is Kw
the ion-product constant of water
how does pOH relate to pH
it is the opposite of pH so
pOH>7 = acidic while pH>7= basic
what are the strong acids
hclo4
h2so4
hi
hbr
hcl
hno3
what are the strong bases
lioh
naoh
koh
ca(oh)2
sr(oh)2
ba(oh)2
what do A- HA and stand for
conjugate base and acid respe.
how do pH and pKa relate
pH<pKa>pKa there is more base conc</pKa>
what is a buffer solution made of
a WEAK acid and its conjugate base
what is a buffer capacity and what does it mean
it is how well a biffer is at resisting pH change
if buffer capacity is high then there is more resistance to a pH change
