H2O + CO2 <--> HCO3- + H+ K1 = 4.4 x 10-7 HCO3- <--> CO3-2 + H+ K2 = 4.7 x 10-11 A buffer solution is prepared by

[answerhappygod]

H2O + CO2 <-->
HCO3- + H+
K1 = 4.4 x 10-7
HCO3- <-->
CO3-2 + H+
K2 = 4.7 x 10-11
A buffer solution is prepared by placing 0.30 mol
CO3-2 and 0.50 mol
HCO3- in sufficient water to prepare
1.00 liter of solution. Half of the solution is poured into a flask
labeled "A"; the other half is placed in is placed in flask "B"
a) What is the buffer solution? What characteristics of the
dissolved species give this solution its buffer properties?
b) Draw the Lewis dot structures of
HCO3- and hydroxide ion.
c) What is the effect on [HCO3-] and
[CO3-2] when 0.10 mol
KHSO4(s) is added to the solution in
flask A? In your answer, be in terms of moles of protons
transferred. Has the capacity of the buffer been exceeded?
d) In another experiment, 0.10 mol NaOH(s) is
added to the solution in flash B. What are the new equilibrium
values for [HCO3-] and
[CO3-2]?