Weak Acids (Section)
Saccharin, a sugar substitute, is a weak acid with pKa = 2.32 at 25 °C. It ionizes in aqueous solution as follows:
HNC7H4SO3(aq) ⇌ H+(aq) + NC7H4SO3–(aq)
What is the pH of a 0.10 M solution of this substance?
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