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What is pH and what does it measure?

In chemistry, pH is a measure of the acidity or basicity of a solution. It approximates but is not equal to p[H], the negative logarithm (base 10) of the. molar concentration of dissolved hydronium ions (H3O+); a low pH indicates a high concentration of hydronium ions, while a high pH indicates a low concentration.

What is pH and its unit of measurement?

Definition and measurement pH. pH is defined as the decimal logarithm of the reciprocal of the hydrogen ion activity, aH +, in a solution. p [H] This was the original definition of Sørensen in 1909, which was superseded in favor of pH in 1924. ... pH indicators. ... Non-aqueous solutions. ... Unified absolute pH scale. ...

What foods have high pH?

With an alkaline ash over +8.0, dark leafy greens like spinach, kale, savoy cabbage and Swiss chard are a good choice for a high-alkaline diet since they are rich in lutein, a powerful cancer-fighting nutrient.

What is pH used for?

On a day-to-day basis, pH is used for everything from cooking to the maintenance of the body. It is also used for industrial purposes, such as determining the quality of drinking water. Water is considered to have a neutral pH, which means it is neither acidic nor alkaline.


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