Comparison of Strong and Weak Acids

Hard General Chemistry Acids And Bases

In a laboratory experiment, a chemist is tasked with identifying the strength of a series of acids and bases. The chemist prepares a solution containing 0.1 M of hydrochloric acid (HCl), a strong acid that dissociates completely in water, and compares its pH to that of a 0.1 M acetic acid (CH₃COOH), a weak acid that only partially dissociates. Which of the following statements correctly describes the pH of the two solutions?

The pH of the 0.1 M HCl solution is lower than that of the 0.1 M acetic acid solution.

The pH of the 0.1 M HCl solution is equal to the pH of the 0.1 M acetic acid solution.

The pH of the 0.1 M acetic acid solution is lower than that of the 0.1 M HCl solution.

The pH of both solutions cannot be determined without additional information.

Hint

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