Which indicator would be the best to use when titrating ammonia with nitric acid? Kb of NH3 is 1.8 x 10-5.
Student Response Value Correct Answer
A. phenolphthalein (pH range 8-10)
B. bromothymol blue (pH range 6.5 -7.5)
C. alizarin yellow R (pH range 10-12)
D. thymol blue (pH range 1.2-2.8 and 8 to 9.2)
E. methyl red (pH range 4.2-6.2)