A Certain Reaction A $\rarr$ Products Is Second Order with Respect to A

question 91

Multiple Choice

A certain reaction A $\rarr$ products is second order with respect to A.If it takes 45 min to reduce the concentration of A from 0.350 M to 0.125 M, what is the rate constant for this reaction?

• A)3.8 x 10^-4 M^-1min^-1
• B)1.9 x 10^-3 M^-1min^-1
• C)5.0 x 10^-3 M^-1min^-1
• D)2.3 x 10^-2 M^-1min^-1
• E)1.1 x 10^-1 M^-1min^-1

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Definitions:

Bony Labyrinth

A complex system of passages and cavities within the temporal bone of the skull, housing the organs of hearing and balance.

Tastant

A substance that can be tasted, stimulating the taste buds and contributing to the sense of taste.

Depolarize

To decrease the membrane potential of a cell, making the interior less negatively charged relative to the outside.

Taste Bud

Sensory structure, mostly on the tongue, that functions as a taste receptor.