Calculate the concentration of all species in a 0.150 M solution
of H2CO3. H2CO3], [HCO−3], [CO2−3], [H3O+], [OH−] = Enter your
answers numerically separated by commas. Express your answer using
two significant figures.
Calculate the concentrations of all species present (H2CO3,
HCO−3, CO2−3, H3O+ and OH−) in 0.017 M H2CO3. I already found the
pH to be 4.07. H2CO3 (Ka1=4.3×10−7;
Ka2=5.6×10−11).
Calculate the pH and concentrations of the following species in
a 0.025 M carbonic acid solution. (Given Ka1 = 4.3x10-7 and Ka2 =
5.6x10-11)
a) H2CO3
b) HCO3-
c) CO32-
d) H+
e) OH
Calculate the concentrations of all the species in a
0.487 M
Na2CO3
solution. For
H2CO3,
Ka1 = 4.2 ×10−7
and Ka2 =
4.8
×10−11.
[CO32−]
= M
[Na+] = M
[HCO3−] = M
[OH−] = M
[H2CO3] = M
(Enter your answer in scientific notation.)
[H+] = M
(Enter your answer in scientific notation.)
Calculate the concentrations of H2C2O4, HC2O4^ -, C2O4^ -2, and
H^+ species in a 0.430 M Oxalic Acid Solution
(Ka1 = 6.5 x 10^-2)
(Ka2 = 6.1 x 10^-5)
Be sure to answer in correct number of significant figures.
H2C2O4 = ________ M
HC2O4^- = _________ M
C2O4^2- = _________ x 10 ^ (scientific notation)
H^+ = ____________ M
Calculate the pH and the concentrations of all species present
in 0.18 M H 2 SO 3 . ( K a1 = 1.5× 10 −2 , K a2 = 6.3× 10 −8 )
Express your answer to three significant figures and include the
appropriate units