Calculate the PH of the Solution Resulting from the Addition

question 92

Multiple Choice

Calculate the pH of the solution resulting from the addition of 25.0 mL of 0.20 M HCl to 50.0 mL of 0.10 M aniline (C₆H₅NH₂) . K_b (C₆H₅NH₂) = 3.8 x 10^-10

• A) 9.42
• B) 9.12
• C) 7.00
• D) 2.30
• E) 2.88

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Definitions:

Involuntary Expression

Unconscious facial or bodily movements that convey emotions or reactions, not controlled voluntarily.

James-Lange Theory

A theory of emotion proposing that emotions result from the perception of bodily reactions to stimuli, implying that physiological arousal precedes emotional experience.

Autonomic Changes

Adjustments in the autonomic nervous system that regulate bodily functions such as heart rate, digestion, respiratory rate, pupillary response, urination, and sexual arousal.

James-Lange Theory

The James-Lange Theory proposes that emotional experiences result from our interpretations of bodily reactions to stimuli, suggesting that we feel sad because we cry, angry because we strike, or afraid because we tremble.