The chemical trichloroethylene (TCE) is a colorless liquid found in very low concentration in drinking water. The EPA has set a maximum concentration of TCE in drinking water at 5 ppb. Consuming water on a regular basis that contains higher concentrations can lead to cancer.
(a) What is the ppb concentration in a 200.0-L (200.0 kg) sample of water that contains 0.43 mg TCE?
(b) Is this water safe to drink?
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