A 1.000-L sample of polluted water was analyzed for lead (II) ion, Pb2+, by adding an excess of sodium sulfate to it. The mass of lead (II) sulfate that precipitated was 208.4 mg. What is the mass of lead in a liter of the water? Give the answer as milligrams of lead per liter of solution. mg Pb Submit Show Tutor Steps

A 1.000-L sample of polluted water was analyzed for lead (II) ion, Pb2+, by adding an excess of sodium sulfate to it. The mass of lead (II) sulfate that precipitated was 208.4 mg. What is the mass of lead in a liter of the water? Give the answer as milligrams of lead per liter of solution. mg Pb Submit Show Tutor Steps

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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If 0.500 mL of an 0.219 M NaCl solution is added to 100.0 mL of pure water. what is the concentration of the new solution? Your answer should have 3 sig figs
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A solution contains 5.54x10 3 M sodium hydroxide and 1.26x10² M sodium sulfide. Solid iron(III) nitrate is added slowly to this mixture. What is the concentration of sulfide ion when hydroxide ion begins to precipitate? [sulfide] = M Submit Answer Retry Entire Group 7 more group attempts remaining
If 0.500 mL of an 0.208 M NaCl solution is added to 100.0 mL of pure water. what is the concentration of the new solution? Your answer should have 3 sig figs
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A 21.25 g of a mixture of the solid salts, sodium chloride and lead II nitrate, is added to distilled water and stirred. The precipitate that is formed is filtered and dried. Its mass was determined to be 11.06 g. Analysis of the remaining solution shoed that the following ions were present: Pb2+, Na+ and NO3". Determine the percent (by mass) of lead (II) nitrate in the mixture. Assume 100 % yield.
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A 24.8mL sample of vegetable juice is titrated with 15.65mL of NaOH solution. The molar concentration of the NaOH is .106 M. The molar mass of citric acid is 192.12 g-mol-1. Express all with three significant figures. A) Determine the molar concentration of citric acid in the vegetable juice sample B) Determine the number of moles of citric acid per 240 mL of the vegetable juice. C) Determine the mass of citric acid per 240 mL of the vegetable juice. D) If the label on the bottle lists the citric acid contest as 1g per serving with a serving size of 240 mL determine the percent error in the rotation results. Express in 2 sig figs.