What Is the PH of a Solution Made by Combining $\times$

question 39

Multiple Choice

What is the pH of a solution made by combining 175 mL of 0.33 M NaC₂H₃O₂ with 126 mL of 0.48 M HC₂H₃O₂? The K_a of acetic acid is 1.75 $\times$ 10^-5.

• A) 4.74
• B) 4.78
• C) 5.79
• D) 4.69
• E) 5.24

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Definitions:

Repetitive Behaviors

Actions that are performed over and over again, often as a symptom of a neurodevelopmental disorder.

Psychological Disorder

A disorder of the mind involving thoughts, behaviors, and emotions that cause either self or others significant distress.

Conduct Disorder

A serious behavioral and emotional disorder in children and adolescents characterized by a pattern of disruptive and violent behaviors and a disregard for others.

Attention-Deficit/Hyperactivity Disorder

A neurodevelopmental disorder characterized by difficulties in maintaining attention and/or hyperactive and impulsive behavior.