A solution is made by taking 2.42 grams of NaCl, 6.44 grams of NaClO4, 3.81 grams of KNO3, and 4.64 grams of KBr in enough water to make 500 mL of solution. A portion was treated with thymol blue indicator, for which the pKIn = 8.8, and the colors are yellow for HIn, and blue for In-. What color should be obtained with the test portion?
A) blue
B) green
C) yellow
D) orange
E) red
Correct Answer:
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