C 6 H 4 NH 2 COOH, para-aminobenzoic acid (PABA), is used in some sunscreen agents. Calculate
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C6H4NH2COOH, para-aminobenzoic acid (PABA), is used in some sunscreen agents. Calculate the concentrations of hydronium ion and para-aminobenzoate ion, C6H4NH2COO-, in a 0.080 M solution of the acid. The value of K a is 2.2 × 10-5.
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