Question 1
Bromothymol blue is a common acid-base indicator. It has a K
a equal to 1.6 × 10
–7. Its un-ionized form is yellow and its conjugate base is blue. What color would a solution have at pH = 5.8?
Question 2
Calculate the percent ionization of formic acid in a 0.010 M HCOOH solution.
(K
a = 1.7 × 10
–4)