What Mass of Solid NaCH₃CO₂ (Molar Mass = 82 $\times$ 10² G

question 3

Multiple Choice

What mass of solid NaCH₃CO₂ (molar mass = 82.0 g/mol) should be added to 1.0 L of 0.50 M CH₃CO₂H to make a buffer with a pH of 7.21? (pK_a of CH₃CO₂H = 7.21)

• A) 0.0 g
• B) 1.9 g
• C) 41 g
• D) 71 g
• E) 1.6 \(\times\) 10² g

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Definitions:

Self-Disclosure

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Gut Level

Refers to an instinctive, intuitive response or feeling, without the involvement of rational analysis.

Self-Disclose

The act of voluntarily sharing personal, private, or sensitive information about oneself with others to foster intimacy or trust.

Open Pane

Typically refers to a component of the Johari Window model, symbolizing information about oneself that is known both to oneself and to others.