6. What is the pH of a solution of 0.200M H3C6H5O7 (citric acid)? Ka = 3.5 x 10-4

Ionization equilibrium: H3C6H5O7 (aq) H+ (aq) + H2C6H 5O7- (aq)

I.C.E. table:

H3C6H5O7 (aq) H+ (aq) H2C6H5O7- (aq)
INTIAL
0.200M
0M
0M
CHANGE
EQUILIBRIUM

What are the changes in concentration of each species?

a) +xM, -xM, +xM
b) -xM, +xM, +xM
c) +xM, +xM, +xM
d) -xM, +xM, -xM