K=[H+]2[CO32-]/[H2CO3]
An aqueous solution contains 0.174 M carbonic acid and 0.165 M perchloric acid.
Calculate the carbonate ion concentration in this solution.
H2CO3 --> H+ HCO3-
.174 x x
x^2/ .174= 4.2E-7 x= 2.48E-4
4.2E-7 (4.8E-11)= [2.48E-4]^2 [CO3 2-] / .174
3.50784E-18 = 6.1504E-8 [CO3 2-]
[CO3 2-] = 5.70E-11
This is for OWL online, and I typed this in as the answer, and it was incorrect.