The nonionized form of an acid indicator is yellow, and its anion is blue. The Ka of this indicator is 10-6. What will be the approximate pH range over which this indicator changes color?
a. 3-5
b. 4-6
c. 5-7
d. 8-10
e. 9-11
Answer: C
The nonionized form of an acid indicator is yellow, and its anion is blue. The Ka of this indicator is 10-6. What will be the approximate pH range over which this indicator changes color?
a. 3-5
b. 4-6
c. 5-7
d. 8-10
e. 9-11
Answer: C