A Buffer Solution Maintains a Constant PH Level to a Certain

question 8

Multiple Choice

A buffer solution maintains a constant pH level to a certain extent when a strong acid such as HCl is added. Which of the following buffer solutions has the greatest buffering capacity to consume added HCl?

• A) 0.5 M HC₂H₃O₂/0.5 M NaC₂H₃O₂
• B) 1.0 M HC₂H₃O₂/0.5 M NaC₂H₃O₂
• C) 1.0 M HC₂H₃O₂/1.5 M NaC₂H₃O₂
• D) 1.5 M HC₂H₃O₂/1.0 M NaC₂H₃O₂
• E) 1.5 M HC₂H₃O₂/0.5 M NaC₂H₃O₂

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Definitions:

Pure Tones

Sounds that have a sinusoidal waveform and contain only one frequency, often used in hearing tests and research.

Nature

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Motion Parallax

A depth cue that involves the apparent relative motion of stationary objects as observed by an observer moving across the landscape.

Retinal Image

The image formed on the retina as a result of light rays entering the eye, which is then processed by the brain to create visual perception.