A Solution Containing 0

question 7

Multiple Choice

A solution containing 0.2 g/mL of a pure R enantiomer in a 1 dm polarimeter rotates plane polarized light by +3°. What is the specific rotation of the R isomer?

• A) +0.6°
• B) +15°
• C) +67°
• D) +150°

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Definitions:

Subjective Contours

Perceived contours that do not exist physically. We tend to complete figures that have gaps in them by perceiving a contour as continuing along its original path.

Figure-Ground Relationships

A visual perception principle referring to the organization of visual field into objects (figures) that stand out from their surroundings (ground).

Selective Looking

The process of focusing one's attention on a specific element while ignoring other stimuli.

Feature Detectors

Neurons in the brain that are specialized to respond to specific features of a stimulus, such as angles, edges, or movement.