If a Solution Is Buffered at a PH of 9

question 21

Multiple Choice

If a solution is buffered at a pH of 9.5, then the addition of a small amount of acid will cause the solution to have a pH of approximately

• A) 7.5
• B) 8.5
• C) 9.5
• D) 10.5

---

Definitions:

Distance Cue

refers to visual and auditory signals that help perceive the distance of an object or scene, crucial for depth perception.

Retinal Image

The visual image projected on the retina, the light-sensitive tissue at the back of the eye, which is then processed by the brain into visual perception.

Brightness Constancy

The human perception of an object's brightness remaining constant even when the illumination conditions change.

Lightness Constancy

A visual perception principle where an object's perceived lightness remains constant despite changes in illumination.