What Is the PH of a Solution Prepared by Mixing

question 18

Multiple Choice

What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M CH₃CO₂H with 25.00 mL of 0.040 M CH₃CO₂Na? Assume that the volume of the solutions are additive and that K_a = 1.8 × 10^-5 for CH₃CO₂H.

• A)2.87
• B)4.35
• C)4.75
• D)5.14

---

Definitions:

Noradrenaline Levels

The concentration of noradrenaline, a neurotransmitter and hormone involved in the body's fight or flight response, affecting mood and stress.

Ritalin

Ritalin is a stimulant medication commonly prescribed to treat Attention Deficit Hyperactivity Disorder (ADHD) by affecting neurotransmitters in the brain.

ADHD

Attention Deficit Hyperactivity Disorder, a neurodevelopmental disorder characterized by persistent patterns of inattention and/or hyperactivity-impulsivity.

Gene Expression

The process by which genetic instructions are used to synthesize gene products such as proteins, influencing the cell's functions.