#6 Determine if the following combination is true or false.
strong acid strong base equivalence point
pH = pKa + log [A-]/[HA] ---> acids
pOH = pKb + log [BH+]/[B] ---> bases
the conjugate salt is on top, and the bottom is either the base or the acid
assume there is a limiting and excess reagent (because it will contain either a strong acid or base)
#7 Determine if the following combination is true or false.
how do you calculate a buffer's pH
pH = pKa + log [A-]/[HA] ---> acids
pOH = pKb + log [BH+]/[B] ---> bases
the conjugate salt is on top, and the bottom is either the base or the acid
assume there is a limiting and excess reagent (because it will contain either a strong acid or base)
#8 Determine if the following combination is true or false.
in what range are buffers effective
7, could be acid (pH) or base (pOH)
#9 Determine if the following combination is true or false.
what is a buffer
within 1 pH of its pKa, up or down
#10 Determine if the following combination is true or false.
H2O pH is always...
HA(aq) + OH- --> A-(aq) + H2O(L)
if weak acid is in excess --> a buffer --> Hendeson Hasselbalch equaiton
if strong base is in excess, the moles of excess hydroxide ions is used for pH
if acid and base are equimolar then the equilibrium concentr