One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is by titrating a sample of silver nitrate solution. Any chloride anions in solution will combine with the silver cations to produce bright white silver chloride precipitate. Suppose an EPA chemist tests a 200. mL sample of groundwater known to be contaminated with iron(II) chloride, which would react with silve nitrate solution like this: FeCl,(aq) + 2 AGNO3(aq) 2 AgCl(s) + Fe(NO,),(aq) The chemist adds 60.0 mM silver nitrate solution to the sample until silver chloride stops forming. He then washes, dries, and weighs the precipitate. He finds he has collected 5.8 mg of silver chloride. Calculate the concentration of iron(II) chloride contaminant in the original groundwater sample. Be sure your answer has the correct number of

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One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is by titrating a sample of silver nitrate
solution. Any chloride anions in solution will combine with the silver cations to produce bright white silver chloride precipitate.
Suppose an EPA chemist tests a 200. mL sample of groundwater known to be contaminated with iron(II) chloride, which would react with silver
nitrate solution like this:
FeCl,(aq) + 2 AgNO3(aq)
2 AgCl(s) + Fe(NO,),(aq)
The chemist adds 60.0 mM silver nitrate solution to the sample until silver chloride stops forming. He then washes, dries, and weighs the
precipitate. He finds he has collected 5.8 mg of silver chloride.
Calculate the concentration of iron(II) chloride contaminant in the original groundwater sample. Be sure your answer has the correct number of
significant digits.
mg
10
L.
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Transcribed Image Text:11 One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is by titrating a sample of silver nitrate solution. Any chloride anions in solution will combine with the silver cations to produce bright white silver chloride precipitate. Suppose an EPA chemist tests a 200. mL sample of groundwater known to be contaminated with iron(II) chloride, which would react with silver nitrate solution like this: FeCl,(aq) + 2 AgNO3(aq) 2 AgCl(s) + Fe(NO,),(aq) The chemist adds 60.0 mM silver nitrate solution to the sample until silver chloride stops forming. He then washes, dries, and weighs the precipitate. He finds he has collected 5.8 mg of silver chloride. Calculate the concentration of iron(II) chloride contaminant in the original groundwater sample. Be sure your answer has the correct number of significant digits. mg 10 L. Submit Assignn Continue O 2020 McGraw-Hill Education. All Rights Reserved. Terms of Use I Privacy Acces Document26.pdf Syllabus. pdf FINAL PAPER W....pdf MacBook Air F10 F9 F8 F7 12
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