The Chemical Acidity of a Solution Is Measured in Units

question 144

Multiple Choice

The chemical acidity of a solution is measured in units of pH: , where 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 than pure water's, which has a pH of 7?

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Definitions:

Organ Systems

Groups of organs that work together to perform complex functions in an organism.

Ecosystem

A community of living organisms and their physical environment interacting as a system.

Physical Environment

The external surroundings and conditions in which an organism lives, including both natural and man-made factors.

Community

An interacting group of various species living in a common location.