The pH of a solution is a measure of its acidity or alkalinity, indicating the concentration of hydrogen ions (H⁺) present in the solution. The pH scale ranges from 0 to 14, where a pH of 7 represents a neutral solution, values below 7 indicate acidity, and values above 7 indicate alkalinity. Determining the pH of a solution is essential in various scientific fields, including chemistry, biology, environmental science, and medicine.
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