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Basicity of Acids

How is the al...

Question

How is the alkalinity of an acid known?

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Solution

Total alkalinity is measured by collecting a water sample, and measuring the amount of acid needed to bring it to a $p H$ of $4.2$ . At this $p H$ , all the alkaline compounds in the sample are used up.The result is reported as $m g / l$ of $C a {C O}_{3}$ .

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