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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 copper (II) chloride, which would react with silver nitrate solution like this: CuCl₂(aq) + 2 AgNO,(aq) - 2 AgCl(s) + Cu(NO₂)₂ (aq) The chemist adds 48.0 mM silver nitrate solution to the sample until silver chloride stops forming. She then washes, dries, and weighs the precipitate. She finds she has collected 2.4 mg of silver chloride. Calculate the concentration of copper(11) chloride contaminant in the original groundwater sample. Be sure your answer has the correct number of significant digits.

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 copper (II) chloride, which would react with silver nitrate solution like this: CuCl₂(aq) + 2 AgNO,(aq) - 2 AgCl(s) + Cu(NO₂)₂ (aq) The chemist adds 48.0 mM silver nitrate solution to the sample until silver chloride stops forming. She then washes, dries, and weighs the precipitate. She finds she has collected 2.4 mg of silver chloride. Calculate the concentration of copper(11) chloride contaminant in the original groundwater sample. Be sure your answer has the correct number of significant digits.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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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 copper (1) chloride, which would react with silver nitrate solution like this: CuCl₂(aq) + 2 AgNO,(aq) → 2 AgCl(s) + Cu (NO₂), (aq) The chemist adds 48.0 mM silver nitrate solution to the sample until silver chloride stops forming. She then washes, dries, and weighs the precipitate. She finds she has collected 2.4 mg of silver chloride. Calculate the concentration of copper(II) chloride contaminant in the original groundwater sample. Be sure your answer has the correct number of significant digits.
Transcribed Image Text: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 copper (1) chloride, which would react with silver nitrate solution like this: CuCl₂(aq) + 2 AgNO,(aq) → 2 AgCl(s) + Cu (NO₂), (aq) The chemist adds 48.0 mM silver nitrate solution to the sample until silver chloride stops forming. She then washes, dries, and weighs the precipitate. She finds she has collected 2.4 mg of silver chloride. Calculate the concentration of copper(II) chloride contaminant in the original groundwater sample. Be sure your answer has the correct number of significant digits.
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