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B. Since 1993 the World Health Organization (WHO) has maintained that the smallest maximum allowable level of lead in drinking water is 5µg/L. A colleague of yours is collecting samples from the drinking water supply in a foreign country and is using an electrochemical technique to determine the amount of Pb2+ cations in the water. He set up an electrochemical cell of 1 L (liter) in volume and used the water sample containing Pb²+ cations to electroplate Pb on to an inert gold cathode. The electroplating was completed in 1 week. Then he stripped the metallic Pb from the gold surface and measured a charge under the stripping curve of 3.71 x 10-³ coulombs. 1. According to the WHO, is the water safe to drink? Show all work. Page 4 of 4 2. Could you experimentally determine if the water is safe to drink by setting up a different electrochemical cell? This involves using a Pb wire and a suitable reference electrode and measuring the equilibrium potential of the Pb wire and the dissolved Pb²+ cations in the water sample? write a few sentences fully explaining your thoughts.

B. Since 1993 the World Health Organization (WHO) has maintained that the smallest maximum allowable level of lead in drinking water is 5µg/L. A colleague of yours is collecting samples from the drinking water supply in a foreign country and is using an electrochemical technique to determine the amount of Pb2+ cations in the water. He set up an electrochemical cell of 1 L (liter) in volume and used the water sample containing Pb²+ cations to electroplate Pb on to an inert gold cathode. The electroplating was completed in 1 week. Then he stripped the metallic Pb from the gold surface and measured a charge under the stripping curve of 3.71 x 10-³ coulombs. 1. According to the WHO, is the water safe to drink? Show all work. Page 4 of 4 2. Could you experimentally determine if the water is safe to drink by setting up a different electrochemical cell? This involves using a Pb wire and a suitable reference electrode and measuring the equilibrium potential of the Pb wire and the dissolved Pb²+ cations in the water sample? write a few sentences fully explaining your thoughts.

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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B. Since 1993 the World Health Organization (WHO) has maintained that the smallest maximum allowable level of lead in drinking water is 5µg/L. A colleague of yours is collecting samples from the drinking water supply in a foreign country and is using an electrochemical technique to determine the amount of Pb²+ cations in the water. He set up an electrochemical cell of 1 L (liter) in volume and used the water sample containing Pb²+ cations to electroplate Pb on to an inert gold cathode. The electroplating was completed in 1 week. Then he stripped the metallic Pb from the gold surface and measured a charge under the stripping curve f 3.71 x 10-³ coulombs. 1. According to the WHO, is the water safe to drink? Show all work. Page 4 of 4 2. Could you experimentally determine if the water is safe to drink by setting up a different electrochemical cell? This involves using a Pb wire and a suitable reference electrode and measuring the equilibrium potential of the Pb wire and the dissolved Pb2+ cations in the water sample? write a few sentences fully explaining your thoughts. Focus
Transcribed Image Text:B. Since 1993 the World Health Organization (WHO) has maintained that the smallest maximum allowable level of lead in drinking water is 5µg/L. A colleague of yours is collecting samples from the drinking water supply in a foreign country and is using an electrochemical technique to determine the amount of Pb²+ cations in the water. He set up an electrochemical cell of 1 L (liter) in volume and used the water sample containing Pb²+ cations to electroplate Pb on to an inert gold cathode. The electroplating was completed in 1 week. Then he stripped the metallic Pb from the gold surface and measured a charge under the stripping curve f 3.71 x 10-³ coulombs. 1. According to the WHO, is the water safe to drink? Show all work. Page 4 of 4 2. Could you experimentally determine if the water is safe to drink by setting up a different electrochemical cell? This involves using a Pb wire and a suitable reference electrode and measuring the equilibrium potential of the Pb wire and the dissolved Pb2+ cations in the water sample? write a few sentences fully explaining your thoughts. Focus
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