In the context of reaction mechanisms, what is the primary reason for using the pre-equilibrium approximation?
A.
o simplify the calculation of equilibrium constants
B.
To approximate the rate of a reaction that occurs in several elementary steps.
C.
To determine the pH of a solution involving a weak acid.
D.
To predict the products of a combustion reaction.
Exam No：AP Chemistry Practice Test Year：2024 Question No：APChemistry2024AP0413
Answer:
B
Knowledge points:
5.9 Pre-Equilibrium Approximation
Solution:
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