What does a pH scale measure?

Answer 1

It indicates the concentration of H+ ions in an aqueous solution.

It measures the acidity or alkalinity of a liquid. A pH of 7 (green with universal indicator) denotes Neutral. Anything below that is acidic, and anything above it is alkaline or basic.

For everyday use, the pH scale goes from 1 (red) to 14 (purple).

*The pH scale measures the concentration of H+ ions (or the acidity/alkalinity) in a solution. It is found by log-1 [H+], and ranges on a scale from 1 to 14 with 1 being the most acidic solution, 14 being the most basic solution, and 7 being neutral.

Answer 2

The pH is a measure of how acidic or basic(alkaline) an aqueous solution is.

Pure water is neutral, with a pH = 7. Things with a pH <7 are acidic, and things with a pH >7 are basic.

The theoretical pH of an aqueous solution is defined this way:

pH = -log10 [aH+]

Answer 3

pH is the logarithmic measurement of the H3O+-concentration in water solutions.

By definition: pH = -log[H3O+]

Example: [H3O+] = 1.0*10-7 mol/L in neutral, pure water (at 25oC), so

pH = -log(H3O+) = -log(1.0*10-7) = 7.0

Answer 4

A measure of the acidity or alkalinity of a solution, numerically equal to 7 for neutral solutions, increasing with increasing alkalinity and decreasing with increasing acidity. The pH scale commonly in use ranges from 0 to 14.

Answer 5

A substances pH level is essentially a measure of the power of hydrogen within that substance: it is a logistic representation of the number of hydrogen atoms formed in an acidic or basic substance.

Answer 6

The pH scale measures the acidity or alkalinity of a substance. It ranges from 0 to 14, with 7 being neutral. Substances with a pH below 7 are acidic, while those with a pH above 7 are alkaline.

Answer 7

pH is the concentration of H+ or in other words acid. The lower the pH is, the more acidic it is.

Answer 8

PH is the measure of somethings acidity or alkalinity. So just as Oranges are acidic that means their pH is acidity. To find the measure you use a pH meter. hope that helps =)

Answer 9

pH measure the acidity/basicity of a solution.

Answer 10

The acidity of a solution (apex)