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 AgNO,(aq) → 2 AgCl(s) + Fe(NO₂), (aq) The chemist adds 80.0 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 2,2 mg of silver chloride. Calculate the concentration of Iron(11) chloride contaminant in the original groundwater sample. Round your answer to 2 significant digits. 0 0.P

yout References Mailings Review View rt Endnote t Footnote ✓ w Notes es 5 Search Researcher Absorbance 5 4.5 4 3.5 2.5 2 1.5 1 0.5 0 Research 0 Insert Citation 1 1. Construct a standard curve in Excel by plotting concentration (in ppm) on your x-ax (unitless) on your y-axis for your known solutions. Label the axes on the graph and provi title. See Figure 5 in the lab handout for an example. Use a linear trendline to generate a data. Label the graph with the equation and the R2 value. Insert your labeled graph in the Help Manage Sources Style: [APA 2 Bibliography Citations & Bibliography Sciwheel Nitrate Standard Curve 3 4 ty=0.8842x-0.8191 R²=0.9509 Q..**. Concentration Insert Caption 5 6 Insert Table of Figure Update Table Cross-reference Captions ww 7 2. Using the equation from your graph, determine the nitrate concentration (in ppm) in each of samples. Text Predictions: On Accessibility: Investigate O Search 8509 FORGE *

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The volume of water needed to dissolve 0.0509 grams of lead fluoride is Assume no volume change upon addition of the solid. Submit Answer Retry Entire Group 7 more group attempts remaining

hese answers will not be recorded Visited In the laboratory you dilute 3.13 mL of a concentrated 12.0 M hydroiodic acid solution to a total volume of 100 mL. What is the concentration of the dilute solution? M Submit Answer [References] Use the References to access important values if needed for this question. Try Another Version 10 item attempts remaining

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Show work..give correct detailed Solution with explanation needed..don't give Handwritten answer..don't use Ai for answering this

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