A Solution of Acetic Acid, CH₃CO₂H, Is Prepared by Dissolving

question 9

Multiple Choice

A solution of acetic acid, CH₃CO₂H, is prepared by dissolving 40.0 mL of acetic acid in enough water to give a total volume of 250.0 mL. What is the percent-by-volume concentration of acetic acid?

• A)19.0%
• B)16.0%
• C)25.0%
• D)40.0%
• E)13.8%

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Definitions:

Ethmoidal Sinus

Air cells within the ethmoid bone, part of the paranasal sinuses, located between the nose and the eyes.

Maxillary Sinus

Air-filled cavities located within the bone of the upper jaw, part of the paranasal sinuses.

Hyoid Bone

A U-shaped bone in the neck that supports the tongue and provides attachment points for neck and pharynx muscles, aiding in swallowing and speech.

Swallowing

The process by which food or liquid moves through the mouth, pharynx, and esophagus into the stomach.