A person is considered to be suffering from lead poisoning if its concentration in him is more than 10 micrograms of lead per decilitre of blood. This concentration in parts per billion is:

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Q2

What is the concentration, in ppm, if 0.025 g of KCl is dissolved in 100 grams of water?

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Q3

Concentration 1 ppm =10x ppb. Then, the value of x is :

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Q4

Concentration of 1 mg per litre is equal to ___________ ppm.

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Q5

A solution contains 200 g ppm CaCO3. If there is x×NA106CaCO3 molecules per gram, what is the value of x?