Referring to Table 21.1, calculate the mole fraction of CO2 and its concentration in parts per million by volume.
TABLE 21.1 Composition of Dry Air at Sea Level |
|
Gas |
Composition (% by Volume) |
|
78.03 |
|
20.99 |
|
0.94 |
|
0.033 |
|
0.0015 |
|
0.000524 |
|
0.00014 |
|
0.000006 |
Want to see the full answer?
Check out a sample textbook solutionChapter 21 Solutions
Chemistry
- How does hydraulic fracturing differ from previously used techniques for the recovery of natural gas from the earth?arrow_forwardWhat possible uses exist for the natural gas liquids that are removed from natural gas during its processing?arrow_forwardWhat is the biological importance of stratospheric ozone? Explain.arrow_forward
- The estimated average concentration of carbon monoxide in air in the United States in 1991 was 6.0ppm. Calculate the number of CO molecules in 1.0L of this air pressure of 754 torr and a temperature of 17 degrees Celsiusarrow_forwardCoal with a mass analysis of 80% carbon, 3% sulfur, 17% noncombustible ash burns completely with 120% of theoretical air. Determine the amount of SO2 produced, in kg SO2 per kg of coal.arrow_forwardA 0.0665 g sample of aluminum metal reacts with hydrochloric acid to give 90.5 mL of hydrogen gas at 23 oC and an atmospheric pressure of 756 mm Hg. The hydrogen gas is collected over water. Write a balanced chemical equation for the reaction between solid aluminum metal and aqueous hydrochloric acid. Using stoichiometry, determine the theoretical yield of hydrogen gas (in moles) that will be produced by the complete reaction of the aluminum metal. Refer to Table 1 and calculate the partial pressure of hydrogen gas. Temperature Pressure Temperature Pressure Temperature Pressure 16 °C 14 mm Hg 21 °C 19 mm Hg 26 °C 24 mm Hg 17 °C 15 mm Hg 22 °C 20 mm Hg 27 °C 25 mm Hg 18 °C 16 mm Hg 23 °C 21 mm Hg 28 °C 26 mm Hg 19 °C 17 mm Hg 24 °C 22 mm Hg 29 °C 27 mm Hg 20 °C 18 mm Hg 25 °C 23 mm Hg 30 °C 28 mm Hg Using the Ideal Gas Law, determine the experimental moles of hydrogen gas…arrow_forward
- The research group has recently focused on identifying the chemical properties of fluorocarbons, such as CF4 and C2F4. These fluorocarbons display a very different reactivity compared to hydrocarbons. Teflon (C2F4)n is a fluoropolymer. When Teflon is mixed with silica at high temperature, all solid decomposes into gases. Write down the reactions that can take place during the process and explain your reasoning.arrow_forwardThe atmosphere of Mars is 96% CO2, with a pressure of approximately 6 * 10−3 atm at the surface. Based on measurements taken over a period of several years by the Rover Environmental Monitoring Station (REMS), the average daytime temperature at the REMS location on Mars is –5.7 °C (22 °F), while the average nighttime temperature is –79 °C (–109 °F). This daily variation in temperature is much larger than what we experience on Earth. What factor plays the largest role in this wide temperature variation, the composition or the density of the atmosphere?arrow_forwardThe temperature and pressure of ozone in the stratosphere are 250 K and 0.001 atm, respectively. How many ozone molecules are present in 1.0 L of air under these conditions?arrow_forward
- As of the writing of this text, EPA standards limit atmospheric ozone levels in urban environments to 84 ppb. How many moles of ozone would there be in the air above Los Angeles County (an area about 4000 square miles; consider a height of 100 m above the ground) if ozone was at this concentration?arrow_forwardGreat Lakes Chemical Company produces bromine, Br2, from bromide salts, such as NaBr, in Arkansas brine by treating the brine with chlorine gas. Write a balanced equation for the reaction of NaBr with Cl2. (Include states-of-matter under the given conditions in your answer. Use the lowest possible whole number coefficients.)arrow_forwardIn Module #4, we discussed the role of chlorofluorocarbons (CFCs) in catalyzing the destruction of O3 in the stratosphere. One example of a CFC that is known to exasperate formation of the hole in the O3 layer is dichlorodifluoromethane (CF2Cl2). In the year 2000, this chemical reached its peak concentration of 2.2 x 10-11 M in the atmosphere. The destruction of CF2Cl2 can be approximated as a first-order process and the 1996 treaty on CFC emissions has eliminated its release into the atmosphere. Given that the rate constant for destruction of CF2Cl2 in the atmosphere is 0.009 yr-1, how long will it take for the concentration of CF2Cl2 to decline to 0.22 x 10-11 M?arrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage LearningChemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub Co
- Chemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning