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Allotropes of Phosphorus

A 200.0 g sam...

Question

A 200.0 g sample of river water contains 6 mg of lead. How many parts per million of lead are in the sample?

A

30 ppm

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B

3 x 10² ppm

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C

6.5 m

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D

21 ppm

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Solution

The correct option is A
30 ppm

Parts per million (ppm):

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