A 100-ML Sample of 0

question 36

Multiple Choice

A 10.0-mL sample of 0.75 M CH₃CH₂COOH is titrated with 0.30 M NaOH. What is the pH of the solution after 22.0 mL of NaOH have been added to the acid? K_a = 1.3 × 10⁻⁵

• A)5.75
• B)4.94
• C)4.83
• D)4.02
• E)3.95

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Definitions:

Phenotype

Describes the set of observable characteristics or traits of an organism as a result of the interaction of its genotype with the environment.

Eye Color

A genetic trait determined by multiple genes and the levels of melanin in the iris, influencing the coloring of the eye.

Antagonistic Drugs

Substances that block or reduce the effect of a neurotransmitter or other chemical in the brain, often used in the treatment of various medical conditions.

Agonist

A substance that activates receptors in the brain or body, mimicking the effects of naturally occurring neurotransmitters, hormones, or other substances.