5 litre of a solution contains 25 mg of ...

5 litre of a solution contains 25 mg of `CaCO_(3)`. What is its concentration in ppm? (mol.wt of `CaCO_(3)` is 100)

2500

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The correct Answer is:

`"ppm"=("weight of solute"xx10^(6))/("weight of solution")`
`=(25xx10^(-3)xx10^(6))/(5000)=5`

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