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Minerals

A 500 gm toot...

Question

A 500 gm toothpaste sample has 0.2 g fluroid concentration.what is the concentretion of flurine in terms of ppm

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Solution

 PPM=no of parts of the component/total no of parts of allcomponent *10^6 =.2/500 *10^6 =400ppm(parts per million)

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