Mass of CO2 formed early = 1.2 x 106 g The world burns approximately 3.8×1012 kg of fossil fuel per year. The previous two statements were either given or solved for in part a of the question. The following is the question asked in part b.  The current concentration of carbon dioxide in the atmosphere is approximately 376 ppm (by volume). By what percentage does the concentration increase each year due to fossil fuel combustion? Approximate the average properties of the entire atmosphere by assuming that the atmosphere extends from sea level to 15 km and that it has an average pressure of 381 torr and average temperature of 275 K. Assume Earth is a perfect sphere with a radius of 6371 km. Express your answer to two significant figures and include the appropriate units.

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Mass of COformed early = 1.2 x 10g

The world burns approximately 3.8×1012 kg of fossil fuel per year.

The previous two statements were either given or solved for in part a of the question. The following is the question asked in part b. 

The current concentration of carbon dioxide in the atmosphere is approximately 376 ppm (by volume). By what percentage does the concentration increase each year due to fossil fuel combustion? Approximate the average properties of the entire atmosphere by assuming that the atmosphere extends from sea level to 15 km and that it has an average pressure of 381 torr and average temperature of 275 K. Assume Earth is a perfect sphere with a radius of 6371 km.
Express your answer to two significant figures and include the appropriate units.
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