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PH, quantitative measure of the acidity or basicity of aqueous or other liquid solutions. The term, widely used in chemistry, biology, and agronomy, translates the values of the concentration of the hydrogen ion into numbers between 0 and 14. Learn more about pH.
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The pH of aqueous solutions can be measured with a glass electrode and a pH meter or a color-changing indicator. Measurements of pH are important in chemistry, agronomy, medicine, water treatment, and many other applications.
17 gru 2022 · The term “pH” stands for “potential of hydrogen,” and it is a unit of measurement for the concentration of hydrogen ions in a solution. The concept of pH was first introduced by the Danish chemist Søren Peder Lauritz Sørensen at the Carlsberg Laboratory in 1909.
The pH scale measures how strongly acidic or alkaline a solution is using a set of values from pH 0 to pH 14. When pure water is dropped into a solution of universal indicator, the...
6 maj 2019 · pH is a logarithmic measure of the hydrogen ion concentration of an aqueous solution pH = -log [H +] where log is the base 10 logarithm and [H +] is the hydrogen ion concentration in moles per liter.
pH is measured by techniques based on either (1) chemical indicators which undergo a change in absorbance or fluorescence of visible or UV light or (2) using pH-sensitive materials which change in potential in solutions of differing pH.
The pH is a logarithmic measure of the concentration of hydrogen ions in a solution. Because pH is on a log scale that means that increasing the pH by 1 corresponds to multiplying the concentration of H + ions by 10!
