What Is the PH of an Aqueous Solution at 25

question 29

Multiple Choice

What is the pH of an aqueous solution at 25.0 °C in which [OH^- ] is 0.00250 M?

• A) +2.60
• B) - 2.60
• C) +11.4
• D) - 11.4
• E) - 2.25

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Definitions:

Central Nervous System

The part of the nervous system that consists of the brain and spinal cord, controlling most functions of the body and mind.

Stimulants

Substances that increase activity in the brain and nervous system, resulting in increased alertness, attention, and energy.

Narcotics

A class of drugs that affect mood or behavior, often used medically to relieve pain, but can also lead to addiction.

Barbiturates

A class of drugs that act as central nervous system depressants and are used for various purposes, including to aid in sleeping, relieve anxiety, or prevent seizures.