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# A sample of drinking water was found to be severely contaminated with chloroform, $CHCl_3$, supposed to be carcinogenic in nature. The level of contamination was 15 ppm (by mass).(i) Express this in percent by mass.

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## 1 Answer

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$1.5\times 10^{-3}\%$
Hence (A) is the correct answer.
answered Jun 6, 2014

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1 answer

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