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Calculate the percent change in lead concentration that occurred from 2000 to 2016 with the following equation: (final concentration-initial concentration) percent change : x 100% initial concentration Express your answer numerically as a percent.

Calculate the percent change in lead concentration that occurred from 2000 to 2016 with the following equation: (final concentration-initial concentration) percent change : x 100% initial concentration Express your answer numerically as a percent.

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter8: Properties Of Gases
Section: Chapter Questions
Problem 95QRT
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ecollege.com/course.html?čðurseld= UpenvellumHMAC=22d5722706f2cfd7a6fZ The U.S. Environmental Protection Agency (U.S. EPA) monitors air quality in the United States. Lead is among the pollutants regularly monitored and regulated. Lead is released into the atmosphere primarily by the processing of metals ores containing lead and by lead-based battery manufacturing. The effects of too much exposure to lead include neurological damage and cardiovascular disease. Because of the Clean Air Act and its amendments, the amounts of lead in air have been decreasing for many years. The chart below shows the lead concentration in air in the United States from 2000 to 2016. (Figure 1) fc Figure 1 of 1 E: Lead Air Quality 0.35 E 0.30- 0.25 0.20 0.15 0.10- Par 2 0.05 0. How 2000 2002 2004 2006 2008 2010 2012 2014 2016 Expr Year Source: U.S. EPA Air Trends (http://www3.epa.gov/airtrends/lead.html) > Vie P Pears Pb Concentration ug/m
Transcribed Image Text:ecollege.com/course.html?čðurseld= UpenvellumHMAC=22d5722706f2cfd7a6fZ The U.S. Environmental Protection Agency (U.S. EPA) monitors air quality in the United States. Lead is among the pollutants regularly monitored and regulated. Lead is released into the atmosphere primarily by the processing of metals ores containing lead and by lead-based battery manufacturing. The effects of too much exposure to lead include neurological damage and cardiovascular disease. Because of the Clean Air Act and its amendments, the amounts of lead in air have been decreasing for many years. The chart below shows the lead concentration in air in the United States from 2000 to 2016. (Figure 1) fc Figure 1 of 1 E: Lead Air Quality 0.35 E 0.30- 0.25 0.20 0.15 0.10- Par 2 0.05 0. How 2000 2002 2004 2006 2008 2010 2012 2014 2016 Expr Year Source: U.S. EPA Air Trends (http://www3.epa.gov/airtrends/lead.html) > Vie P Pears Pb Concentration ug/m
7a6f2e342e138fe8e#10001 Update : I Review I Constants I Periodic Table Submit Previous Answers Correct You may have noticed that the concentration at the beginning of the survey is much higher than that in 2016, when the data end. Let's quantify this decrease. Part C Calculate the percent change in lead concentration that occurred from 2000 to 2016 with the following equation: (final concentration-initial concentration) percent change x 100% initial concentration Express your answer numerically as a percent. percent change = Submit Request Answer Part D How many lead atoms were in one cubic centimeter of air in 2011? Express the number of lead atoms numerically. • View Available Hint(s) P Pearson
Transcribed Image Text:7a6f2e342e138fe8e#10001 Update : I Review I Constants I Periodic Table Submit Previous Answers Correct You may have noticed that the concentration at the beginning of the survey is much higher than that in 2016, when the data end. Let's quantify this decrease. Part C Calculate the percent change in lead concentration that occurred from 2000 to 2016 with the following equation: (final concentration-initial concentration) percent change x 100% initial concentration Express your answer numerically as a percent. percent change = Submit Request Answer Part D How many lead atoms were in one cubic centimeter of air in 2011? Express the number of lead atoms numerically. • View Available Hint(s) P Pearson
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