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On analysis of an impure sample of sodiu...

On analysis of an impure sample of sodium chloride. The percentage of chlorine was found to be 45.5 What is the percentage of pure sodium chloride in the given sample?

Text Solution

Verified by Experts

The molecular mass of pure sodium chloride (NaCl)
=At. Mass of Na+ At. Mass of chlorine.
=(23+35.5)=58.5
% of chlorine in pure NaCl
`=(35.5)/(58.5)xx100=60.6`
Thus,
% of purity of NaCl in the sample `=(45.5)/(60.6)xx100=75`.
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On analysing an impure sample of sodium chloride, the percentage of chlorine was found to be 45.5. What is the percentage of pure sodium chloride in the sample?

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