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A sample of drinking water was found to ...

A sample of drinking water was found to be severely contaminated with chloroform, `CHCl_(3)`, supposed to be carcinogen. The level of contamination was 15 ppm (by mass).
(i) Express this in per cent by mass.
(ii) Determine the molality of chloroform in the water sample.

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Let's solve the given problem step by step. ### Part (i): Express the contamination level in percent by mass 1. **Understand the given data**: - Contamination level: 15 ppm (parts per million) - This means 15 parts of chloroform in 1,000,000 parts of water by mass. ...
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A sample of drinking water was found to be serverly contaminated with chloroform, CHCl_(3) , supposed to be carcinogen. The level of contamination was 15 ppm (by mass). (i) Express this in percent by mass. (ii) Determine the molality of chloroform in the water sample.

A sample of drinking water was found to be severely contaminated with chloroform, CHCl_(3) , supposed to be carcinogen. The level of contamination was 15 ppm (by mass). (i) Express this in percent by mass (ii) Determine the molarity of chloroform in the water sample.

Knowledge Check

  • A sample of drinking water severely contaminated with chloroform, CHCI_3 is supposed to be carcinogenic in nature. The level of contamination was 15 ppm (by mass). What is the molality of chloroform in the water sample?

    A
    `2.25 xx 10^(-5)m`
    B
    `1.25 xx 10^(-4) m`
    C
    `1.85 xx 10^(-6) m`
    D
    `1.72 xx 10^(-5) m`

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    A sample of drinking water was found to be severely contaminated with chloroform, CHCl_(3) , which is supposed to be carcinogenic in nature. The level of contamination was 15 pp m (by mass). a. Express this is precent by mass. b. determine the molarity of chloroform in the water sample.

    What will be the molarity of chloroform in the water sample which contains 15 ppm chloroform by mass?

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