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The Mole Fraction of Krypton in Dry Air near Sea

Question 95

Multiple Choice

The mole fraction of krypton in dry air near sea level is 0.00000114 where the molar mass of krypton is 83.80. The concentration of krypton in the atmosphere is ________ ppm.


A) 8.77 × 1011
B) 1.14 × 10-4
C) 1140
D) 1.14
E) 1.14 × 10-12

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