The Chemical Acidity of a Solution Is Measured in Units $\mathrm { pH } = - \log \left[ \mathrm { H } ^ { + } \right]$

question 6

Multiple Choice

The chemical acidity of a solution is measured in units of pH: $\mathrm { pH } = - \log \left[ \mathrm { H } ^ { + } \right]$ ,where $\left[ \mathrm { H } ^ { + } \right]$ is the hydrogen ion concentration in the solution.If a sample of rain has a pH of 3.3,how many times higher is its $\left[ \mathrm { H } ^ { + } \right]$ than pure water's,which has a pH of 7?

• A) \(5.0 \times 10 ^ { 4 }\)
• B) \(2.0 \times 10 ^ { 4 }\)
• C) \(2.0 \times 10 ^ { 3 }\)
• D) \(5.0 \times 10 ^ { 3 }\)
• E)7

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Definitions:

Population Variance

A measure of how data points in an entire population are dispersed or spread out from the mean, indicating the level of diversity within the population.

Confidence Interval

A collection of numbers, sourced from sample data, presumed to contain the value of an undiscovered population characteristic.

Population Variance

The variance of a population data set, calculating the mean of the squared deviations from the mean of the data.

Confidence Interval

A range of values, derived from the sample data, that is likely to contain the value of an unknown population parameter.