What Molar Ratio of CH₃COOH to CH₃COONa Should Be Used

question 22

Multiple Choice

What molar ratio of CH₃COOH to CH₃COONa should be used in order to prepare an acetic acid / sodium acetate buffer solution with a pH of 4.00 ± 0.02? [K_a(CH₃COOH) = 1.8 × 10^-5]

• A) 0.18
• B) 0.84
• C) 1.2
• D) 5.6
• E) 0.10

---

Definitions:

Trait Approach

A theoretical framework in personality psychology that focuses on the identification and measurement of specific, stable characteristics that differentiate individuals.

Trait Psychologists

Psychologists who study and categorize human personalities based on identifiable traits and characteristics.

Categories

Groups or classes that contain objects, events, or concepts based on common characteristics or criteria.

Set Of Categories

A classification system that organizes objects, ideas, or information into groups based on shared characteristics or criteria.