An Anion That Is an Important Part of a Buffer

question 128

Multiple Choice

An anion that is an important part of a buffer system is:

• A)bicarbonate
• B)phosphate
• C)both A and B
• D)both A and B and sulfate

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Definitions:

Standard deviation

A measure of the amount of variation or dispersion of a set of values, indicating how spread out the values in a data set are.

Electric usage

The amount of electrical energy consumed by a residence, industry, or equipment in a specific period.

Standard error of the mean

The standard deviation of the sampling distribution of the sample mean, measuring how far the sample mean of the data is likely to be from the true population mean.

Population standard deviation

The square root of the variance of a population, which measures the dispersion of a set of values relative to their mean.