3. You have analyzed a "Superfund" site for trichloroethylene (TCE: the most common organic groundwater contaminant: MW = 131.4) and chromate (CrO4²:MW = 116) measured respective concentrations of 1.7 x 10-7 moles/L and 8.6 × 10-7 N (equivalents/L). What are their concentrations in parts per billion (ppb)? Do they exceed the Clean Water Act maximum concentration levels of 5 ppb and 100ppb respectively?

3. You have analyzed a "Superfund" site for trichloroethylene (TCE: the most common organic groundwater contaminant: MW = 131.4) and chromate (CrO4²:MW = 116) measured respective concentrations of 1.7 x 10-7 moles/L and 8.6 × 10-7 N (equivalents/L). What are their concentrations in parts per billion (ppb)? Do they exceed the Clean Water Act maximum concentration levels of 5 ppb and 100ppb respectively?

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter1: Basic Concepts Of Chemistry

Section: Chapter Questions

Problem 49RGQ: Fluoridation of city water supplies has been practiced in the United States for several decades. It...

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