An Acetic Acid Buffer Containing 0

question 1

Multiple Choice

An acetic acid buffer containing 0.50 M CH₃COOH and 0.50 M CH₃COONa has a pH of 4.74. What will the pH be after 0.0020 mol of HCl has been added to 100.0 mL of the buffer?

• A)4.77
• B)4.71
• C)4.68
• D)4.62
• E)None of these choices are correct.

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Definitions:

Average Balance

The mean amount of money held in an account over a certain period.

Standard Deviation

An index of variability that quantifies the spread of a set of numbers or the dispersion from the average.

Exponential Distribution

The exponential distribution is a continuous probability distribution that describes the time between events in a Poisson process, where events occur continuously and independently at a constant average rate.

Exponentially Distributed

It refers to a type of continuous probability distribution that describes the time between events in a Poisson point process, where events occur continuously and independently at a constant average rate.