A certain weak acid, HA, has a Ka value of 6.7 X 10^-7.
Part A
Calculate the percent ionization of HA in a 0.10 M solution. Express your answer to two significant figures and include the appropriate units.
Part B
Calculate the percent ionization of HA in a 0.010 M solution.
Express your answer to two significant figures, and include the appropriate units.
Answer:
6.7 x 10^-7 =x^2/ 0.10-x
x = 0.00026
% = 0.00026 x 100/ 0.10=0.26
6.7 x 10^-7= x^2/0.01-x
x =0.000081
% = 0.000081 x 100/0.01=0.81