Aspirin Is Produced by the Reaction of Salicylic Acid (M

question 11

Multiple Choice

Aspirin is produced by the reaction of salicylic acid (M = 138.1 g/mol) and acetic anhydride (M = 102.1 g/mol) . C₇H₆O₃(s) + C₄H₆O₃( ) → C₉H₈O₄(s) + C₂H₄O₂( )
If 2.04 g of C₉H₈O₄ (M = 180.2 g/mol) is produced from the reaction of 3.03 g C₇H₆O₃ and 4.01 g C₄H₆O₃,what is the percent yield?

• A) 28.8%
• B) 29.0%
• C) 50.9%
• D) 51.6%
• E) 67.3%

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Definitions:

Basilar Membrane

A structure in the cochlea of the inner ear that plays a key role in the perception of sound, vibrating in response to sound waves and thereby stimulating hair cells to send nerve impulses to the brain.

Eardrum

A slender membrane dividing the external ear from the middle ear, which oscillates when hit by sound waves.

Oval Window

The membrane-covered opening that leads from the middle ear to the vestibule of the inner ear and is involved in the process of hearing.

Amplitude

In the context of waves, it is the height of the wave, which can determine the intensity or loudness of a sound.