Mondo Knows Facts
The pH scale measures hydrogen ion concentration logarithmically
Each single unit change on the pH scale represents a tenfold shift in acidity
The pH scale quantifies how acidic or basic an aqueous solution is based on the negative logarithm of hydrogen ion concentration. A solution with a pH of 4 contains ten times more hydrogen ions than a neutral solution of pH 5 and one hundred times more than pH 6. Pure water sits at neutral pH 7, while values below 7 indicate acidic conditions.
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Tags: chemistry, ph, acids
The pH scale measures hydrogen ion concentration logarithmically: the short answers
- Where does this come from, and can I check it?
- Each single unit change on the pH scale represents a tenfold shift in acidity. The figure is taken from USGS, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
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