Keyword Analysis & Research: ph

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Frequently Asked Questions

What is pH and why do scientists use pH?

pH is an important measure. It’s a measure of water quality. Doctors use pH to help diagnose medical conditions such as kidney problems. Farmers and gardeners measure the pH of soil to find out which plants might grow best. The pH scale is logarithmic.

What is pH and how do I measure pH?

pH is a measure of the concentration of hydronium (H3O+) ions in an aqueous solution. It is measured on a negative logarithmic scale from 0 to 14. Acidic solutions are below pH 7, with 0 being the most acidic. Basic solutions are above pH 7, with 14 being the most basic. A solution with a pH of 7 is considered neutral.

What does pH actually mean?

pH stands for power of hydrogen, which is a measurement of the hydrogen ion concentration in the body. The total pH scale ranges from 1 to 14, with 7 considered to be neutral. A pH less than 7 is said to be acidic and solutions with a pH greater than 7 are basic or alkaline.

What exactly does pH measure?

pH is measured on a scale of 0 to 14. pH is the measurement of the activity of free hydrogen (H+, acid) and hydroxyl (OH-, base) ions in a solution. pH 7.0 is considered neutral, or balanced; it has the same amount of acid and base ions. pH below 7.0 is considered acidic. pH above 7.0 is considered alkaline (or basic).


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