A solution is prepared by dissolving 0.23 mol of acetic acid and 0.27 mol of sodium acetate in water sufficient to yield 1.00 L of solution. The addition of 0.05 mol of HCl to this buffer solution causes the pH to drop slightly. The pH does not decrease drastically because the HCl reacts with the present in the buffer solution.

Acetate ion

Explanation:

CH₃COOH  ↔ CH₃COO⁻ + H⁺

HCl -> H⁺ + Cl⁻

The H+ ions from added HCl reacts with acetate ions and more amount of acetic acid will be formed due to common ion effect.

explanation:

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)