Your neighbor recently received Drinking water Quality report from Clear lake ci
ID: 984001 • Letter: Y
Question
Your neighbor recently received Drinking water Quality report from Clear lake city water Authority. He has some concerns of his drinking water quality and come to see for some questions. *maximum contaminant level (MCL) is the higher permissible level of a contaminant in drinking water. Covert arsenic concentration of 2.0 ppb(Column 2) into ppb and mg/l. convert Selenium(se) concentration of 3.8 ppb into molarity(M) and micro-molarity. Explain to your neighbor what are the most likely sources of xylenes, toluene and ethyl benzene in the region. The instructor recently had his car inspected by the KWIK stocker state inspection at Webster, Texas. The table below shows part of the Emission test results. Note that carbon monoxide(CO) and hydrocarbons(HC)are the two main exhausted gases produced by the combustion of gasoline-powered vehicles, and they are reported in different units. Covert the regulatory standard of220ppm HC(assuming a normal molecular weight MW=16) into g/m^3. What is the actual exhaust concentration of co(MW=28) at low speed emission test? Convert CO concentration from% into ppm and point mg/m^3.Explanation / Answer
4.1 0.002 mg/L and 0.002 ppm
4.2 4.8125633232016E-11 mol/L and 481.01265822785 umol/ml
4.3 Mixed xylenes are distributed throughout the environment; they have been detected in air, rainwater, soils, surface water, sediments, drinking water, and aquatic organisms. (1)
Not only for xylenes but toluenes and ethyl-bencene
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.