Question

Dilute hydrochloric acid is gradually added to a solution that is buffered at pH 4.76. How will the pH of the solution be affected?

Answer 1

Answer:

Adding acid to any buffer solution will cause the pH to decrease

Explanation:

Adding acid to buffer solutions is increasing the H⁺ concentration and therefore causes the pH to decrease.

Answer 2

If dilute hydrochloric acid is gradually added to a solution that is buffered at pH 4.76. The pH of the solution will be decreased.

What is a buffer solution?

A buffer solution is a solution in which the quantity of acid and base is equal or balanced.

HCl is a highly acidic acid, and the pH of acids is less than 7, so if HCL is added to a solution, it pH will be decreased. The pH will be decreased from 4.76.

Thus, the pH of the solution will be decreased because HCl is highly acidic acid.

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