Aspirin (C₉H₈O₄)is Produced by the Reaction of Salicylic Acid (M $\to$

question 14

Multiple Choice

Aspirin (C₉H₈O₄) is produced by the reaction of salicylic acid (M = 138.1 g/mol) and acetic anhydride

(M = 102.1 g/mol) .C₇H₆O₃(s) + C₄H₆O₃( ) $\to$ C₉H₈O₄(s) + C₂H₄O₂(
)
If you react 2.00 g C₇H₆O₃ with 1.60 g C₄H₆O₃,what mass of aspirin (M = 180.2 g/mol) can theoretically be obtained?

• A) 0.40 g
• B) 2.61 g
• C) 2.82 g
• D) 1.53 g
• E) 3.60 g

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Definitions:

Detecting Pain

The physiological and psychological process by which organisms recognize and respond to stimuli that are noxious and potentially harmful.

Jnd

The minimum difference in stimulation that a person can detect 50% of the time, also known as the just noticeable difference.

Absolute Threshold

The minimum intensity level of a stimulus required for a person to detect its presence at least half the time.

Proportional Differences

Variations that are relative to the size or significance of the items being compared.