A 500-ML Sample of a 0

question 26

Multiple Choice

A 50.0-mL sample of a 0.100 M solution of a weak acid HA has an equilibrium pH of 4.00. After 1.0 × 10^-3mol of a substance X is added to the solution, it is observed that the pH of the solution increases. What might be true about substance X? I. X might be a strong base that partially neutralized some weak acid.
II) X might be a strong acid that made the solution more acidic.
III) X might be a soluble ionic compound containing the anion A^-.

• A) I only
• B) II only
• C) III only
• D) I or III
• E) II or III

Understand and describe the pathophysiology of various endocrinological disorders.

Identify the anatomical structure and function of bones.

Understand the process of bone formation, growth, and healing.

Comprehend the organization and function of skeletal system components.

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