What is the pH of a 0.20 M solution of NH₄Cl? [K_b(NH₃) = 1.8 * 10^-5] A) 3.74 B) 4.98 C) 6.53 D) 9.02 E) 10.25

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Quizplus · Accepted Answer

This question requires knowledge of how to calculate pH from molarity of acid. Unfortunately, the given substance is not an acid, so the question cannot be answered as is. The given substance is a peptide represented by a complicated chemical formula. Without additional information, it is impossible to determine the pH of a 0.20 M solution of this substance. The correct answer is therefore B, as this is the only answer that can be confidently ruled out.

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