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Chemistry: The Central Science | 13th Edition | ISBN: 9780321910417 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward; Matthew E. Stoltzfus
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The atmospheric concentration of CO2 gas is presently 390

Chapter , Problem 10.65

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QUESTION:

The atmospheric concentration of CO2 gas is presently 390 ppm (parts per million, by volume; that is, 390 L of every 106 L of the atmosphere are CO2). What is the mole fraction of CO2 in the atmosphere?

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QUESTION:

The atmospheric concentration of CO2 gas is presently 390 ppm (parts per million, by volume; that is, 390 L of every 106 L of the atmosphere are CO2). What is the mole fraction of CO2 in the atmosphere?

ANSWER:

Problem 10.65

The atmospheric concentration of $$ \mathrm{CO_{2}} gas is presently 390 ppm (parts per million, by volume; that is, 390 L of every $$ \mathrm{10^{6} L} of the atmosphere are $$ \mathrm{CO_{2}}). What is the mole fraction of $$ \mathrm{CO_{2}} in the atmosphere?

                                                             Step by Step Solution

Step 1 of 2

From the given,

Atmospheric concentration of carbon dioxide = 390 ppm

Volume of carbon dioxide  present in $$ \mathrm{10^{6} L} of atmosphere = 390 L

According to the Avagadro’s hypothesis ,

Equal volume of gases at the same temperature and pressure contain equal numbers of molecules.

Hence, 390 moles of Carbon Dioxide is present in $$ \mathrm{10^{6} L}moles of atmosphere.

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