chemical percentage of gases in the atmosphere of Mars is 95.3% CO2, 2.7% N2, 1.

Question

chemical percentage of gases in the atmosphere of Mars is 95.3% CO2, 2.7% N2, 1.6% Ar and a small percentage of O2, Ne, and so forth. in a 1.2 miles sample of the mars atmosphere, what fraction in moles is CO2? chemical percentage of gases in the atmosphere of Mars is 95.3% CO2, 2.7% N2, 1.6% Ar and a small percentage of O2, Ne, and so forth. in a 1.2 miles sample of the mars atmosphere, what fraction in moles is CO2? chemical percentage of gases in the atmosphere of Mars is 95.3% CO2, 2.7% N2, 1.6% Ar and a small percentage of O2, Ne, and so forth. in a 1.2 miles sample of the mars atmosphere, what fraction in moles is CO2?

Explanation / Answer

Assume that the mass of air is 100 g, thus 95.3 g CO2, 2.7 g N2 , 1.6 g Ar and 0.4 g O2

Now calculate the moles of all gases as follows:

CO2: = 95.3 g / 44 g/ mole = 2.17 moles CO2

N2 = 2.7 g / 28 g/ mole = 0.096 moles

Ar = 1.6 g / 40 g/ mole = 0.04 moles

O 2= 0.4 g / 32 g/ mole = 0.0125 moles

Total moles = 2.3185 moles

Mole fraction of CO2 = 2.17/ 2.3185

= 0.9359

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