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A chemistry class is investigating contamination in different sources of water and discovers that one source of water may have some lead ions (Pb²+) in it. The students decide to perform an experiment to test for the presence of lead. The students take a sample of water to the lab and add solid NaI, which will precipitate any lead ions according to the following equation. 2 Nal(aq) + Pb²+ (aq) → PbI₂ (s) + 2 Na+ (aq) If a 2000.0 mL sample of water has a lead ion concentration of 2.00 x 10-5 M and excess NaI is added to the sample, what is the mass of PbI2 collected at the end of the experiment? 0.0041 gram 0.0083 gram 0.0092 gram 0.0184 gram TH f(x)

A chemistry class is investigating contamination in different sources of water and discovers that one source of water may have some lead ions (Pb²+) in it. The students decide to perform an experiment to test for the presence of lead. The students take a sample of water to the lab and add solid NaI, which will precipitate any lead ions according to the following equation. 2 Nal(aq) + Pb²+ (aq) → PbI₂ (s) + 2 Na+ (aq) If a 2000.0 mL sample of water has a lead ion concentration of 2.00 x 10-5 M and excess NaI is added to the sample, what is the mass of PbI2 collected at the end of the experiment? 0.0041 gram 0.0083 gram 0.0092 gram 0.0184 gram TH f(x)

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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assroom.collegeboard.org <11 of 11 0.0041 gram 0.0083 gram ©** 0.0092 gram A chemistry class is investigating contamination in different sources of water and discovers that one source of water may have some lead ions (Pb²+) in it. The students decide to perform an experiment to test for the presence of lead. The students take a sample of water to the lab and add solid NaI, which will precipitate any lead ions according to the following equation. 2 Nal(aq) + Pb²+ (aq) PbI₂ (s) + 2 Na+ (aq) 0.0184 gram 44% 10:49 If a 2000.0 mL sample of water has a lead ion concentration of 2.00 x 10-5 M and excess NaI is added to the sample, what is the mass of PbI2 collected at the end of the experiment? Submit (:D) : III = 19 f(x) 8
Transcribed Image Text:assroom.collegeboard.org <11 of 11 0.0041 gram 0.0083 gram ©** 0.0092 gram A chemistry class is investigating contamination in different sources of water and discovers that one source of water may have some lead ions (Pb²+) in it. The students decide to perform an experiment to test for the presence of lead. The students take a sample of water to the lab and add solid NaI, which will precipitate any lead ions according to the following equation. 2 Nal(aq) + Pb²+ (aq) PbI₂ (s) + 2 Na+ (aq) 0.0184 gram 44% 10:49 If a 2000.0 mL sample of water has a lead ion concentration of 2.00 x 10-5 M and excess NaI is added to the sample, what is the mass of PbI2 collected at the end of the experiment? Submit (:D) : III = 19 f(x) 8
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