Pls help ASAP. Pls circle the final answer and place give proper units and decimals. Air is a mixture of several gases. The 10 mostabundant of these gases are listed here along withtheir mole fractions and molar masses.ComponentMole fractionMolar mass(g/mol)Nitrogen0.7808428.013Oxygen0.2094831.998Argon0.0093439.948Carbon dioxide 0.00037544.0099Neon0.0000181820.183Helium0.000005244.003Methane0.00000216.043Krypton0.0000011483.80Hydrogen0.00000052.0159Nitrous oxide0.000000544.0128 Calculate the mass percentage of oxygen in dry air.Express your answer with the appropriate units.

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Science

Chemistry

Calculate the mass percentage of oxygen in dry air.

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter5: Gases

Section: Chapter Questions

Problem 5.103PAE

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Pls help ASAP. Pls circle the final answer and place give proper units and decimals.

Air is a mixture of several gases. The 10 most
abundant of these gases are listed here along with
their mole fractions and molar masses.
Component
Mole fraction
Molar mass
(g/mol)
Nitrogen
0.78084
28.013
Oxygen
0.20948
31.998
Argon
0.00934
39.948
Carbon dioxide 0.000375
44.0099
Neon
0.00001818
20.183
Helium
0.00000524
4.003
Methane
0.000002
16.043
Krypton
0.00000114
83.80
Hydrogen
0.0000005
2.0159
Nitrous oxide
0.0000005
44.0128

Calculate the mass percentage of oxygen in dry air.
Express your answer with the appropriate units.

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