Why Do We Use the PH Scale to Indicate the Acidity

question 119

Multiple Choice

Why do we use the pH scale to indicate the acidity of a solution rather than simply stating the concentration of hydronium ions?

• A)It includes the concentration of hydronium and hydroxide ions.
• B)It is used because the general public understands it.
• C)It is more accurate to use the pH scale.
• D)It is more convenient,since the concentration of hydronium ions is so small.

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Definitions:

Frequency Distribution

A summary of data showing the frequency (or number) of observations in each of several non-overlapping categories or bins.

Class Width

The difference between the upper and lower boundaries (or real limits) of any class/interval in a frequency distribution.

Homework

Assignments given to students by their teachers to be completed outside the class.

Cumulative Percent Frequency

A statistical measure that shows the percentage of observations that fall below or at a particular value when the data set is ordered.