You Have 500

question 113

Multiple Choice

You have 500.0 mL of a buffer solution containing 0.20 M acetic acid (CH₃COOH) and 0.30 M sodium acetate (CH₃COONa) .What will the pH of this solution be after the addition of 20.0 mL of 1.00 M NaOH solution? [K_a = 1.8 × 10^-5]

• A)4.41
• B)4.74
• C)4.56
• D)4.92
• E)5.07

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Definitions:

Self-instruction Training

A cognitive behavioral technique where individuals are taught to guide their own actions through self-directed statements or questions.

Overt External Guidance

Visible and outward guidance or instruction provided to help direct or control actions or behaviors.

Covert Self-guidance

An internal process where an individual directs their own actions and thoughts in achieving personal goals without external observation.

Self-evaluation Self-statement

Internal reflections and judgments that individuals make about their own performance or behavior.