A Buffer Is Prepared by Adding 300

question 57

Multiple Choice

A buffer is prepared by adding 300.0 mL of 2.0 M NaOH to 500.0 mL of 2.0 M CH₃COOH. What is the pH of this buffer? K_a = 1.8 × 10⁻⁵

• A)4.57
• B)4.52
• C)4.87
• D)4.92
• E)4.97

---

Definitions:

Self-Esteem

An individual's subjective evaluation or perception of their own worth, encompassing beliefs and emotions related to self-competence and self-respect.

Academically Successful

Pertaining to individuals or groups who achieve high standards or outstanding results in educational settings.

Heteronomous Morality

A stage in moral development described by Piaget where children's morals are shaped by external authority and rules, and the consequences determine the goodness or badness of an action.

Piaget

Jean Piaget, a Swiss developmental psychologist known for his theory of cognitive development that describes how children construct a mental model of the world.