What is the pH of a 0.020 M HCl solution?
A)0.020
B)1.70
C)7.00
D)12.30
E)−1.70

Name: What is the pH of a 0.020 M HCl solution? A)0.020 B)1.70 C)7.00 D)12.30 E)−1.70
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Quizplus · Accepted Answer

HCl is a strong acid, which means it completely dissociates in water to form H+ and Cl- ions. The pH of a strong acid solution is determined solely by the concentration of H+ ions. Using the pH formula, pH = -log[H+], we can calculate the pH of a 0.020 M HCl solution as pH = -log(0.020) = 1.70. Therefore, B is the correct answer.

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