Phenolphthalein has a pK a of 9.7. It is colorless in its acid form and pink in
Question:
Phenolphthalein has a pKa of 9.7. It is colorless in its acid form and pink in its basic form. For each of the values of pH, calculate [In–]/[HIn] and predict the color of a phenolphthalein solution.
a. pH = 2.0
b. pH = 5.0
c. pH = 8.0
d. pH = 11.0
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Phenolphthalein is a weak acid with a pKa of 97 The pKa is the pH at which the acid and its conjugat...View the full answer
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