Solubility of organic compounds. [see Course Notes and Jensen Ch. 18] The maximu

Question

Solubility of organic compounds. [see Course Notes and Jensen Ch. 18] The maximum contaminant level (MCL) for chloroform (CHC13) in drinking water is 100 ug.L. The occupational exposure level (OEL) for chloroform in air is 10 ppm by weight, which is 2.54 x10-6 atm chloroform. If treated water in an enclosed drinking water reservoir is at the MCL for chloroform, is the OEL for chloroform in air exceeded? Assume that the air volume of the enclosed reservoir is very large. You will need to look up a Henry's law constant (Kh) for the solubility of chloroform in water.

Explanation / Answer

amnt of chloroform in air taking kh =3.67x(10^-3) atm cubic m/mol is

3.0461X10^-6 atm

so it exceeds

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