What is a measure of the amount of acid contained in water?

A) relative gravity
B) specific gravity
C) relative resistance
D) specific resistance

Specific Gravity

A dimensionless number that describes the ratio of the density of a substance to the density of a reference substance, typically water at 4 °C.

Acid

A chemical substance that donates protons or accepts electrons and has a sour taste.

Water

A ubiquitous chemical substance with the formula H2O, essential for all known forms of life and used as a solvent among its numerous roles.