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pH is a logarithmic scale that indicates the concentration of hydrogen ions in aqueous solutions. Learn how pH was introduced by Sørensen in 1909, how it is measured with electrodes or indicators, and how it is used in various fields.
Learn what pH is, how it is measured, and why it is important for various substances and applications. See examples of acidic and basic substances and their pH values on a logarithmic scale.
30 Σεπ 2020 · Learn how to measure and interpret pH values of acids, bases, and neutral substances. See a table of pH values of common chemicals, from hydrochloric acid to drain cleaner.
pH is a measure of the acidity or basicity of aqueous or other liquid solutions, based on the concentration of hydrogen ions. Learn how pH is measured, what factors affect it, and why it is important for agriculture and biology.
pH Scale: Acids, bases, pH and buffers (article) | Khan Academy. Explore.
30 Ιαν 2023 · Learn how to define and use the pH scale as a measure of acidity of a solution, and how it relates to the self-ionization of water. Explore the origin, logic, and applications of the pH scale and other related constants.
The pH scale is logarithmic, meaning that an increase or decrease of an integer value changes the concentration by a tenfold. For example, a pH of 3 is ten times more acidic than a pH of 4. Likewise, a pH of 3 is one hundred times more acidic than a pH of 5.
