A 250-ML Sample of 0

question 41

Multiple Choice

A 25.0-mL sample of 0.10 M C₂H₃NH₂ (ethylamine) is titrated with 0.15 M HCl. What is the pH of the solution after 9.00 mL of acid have been added to the amine? K_b = 6.5 × 10⁻⁴

• A)11.08
• B)10.88
• C)10.74
• D)10.55
• E)10.49

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Definitions:

Belief Perseverance

The psychological tendency to maintain one's beliefs even in the face of contradictory evidence or information.

Dissonance

A state of conflict or inconsistency between one's beliefs, attitudes, or actions, often leading to discomfort and a desire for resolution.

Attitude Polarization

The phenomenon where a disagreement becomes more extreme as the differing parties continue to consider more information in support of their respective opinions.

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