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The Mole Fraction of Argon in Dry Air near Sea

Question 153

Multiple Choice

The mole fraction of argon in dry air near sea level is 1.818 × The mole fraction of argon in dry air near sea level is 1.818 × , where the molar mass of argon is 39.948. The concentration of argon in the atmosphere is ________ ppm. A) 9.3 × 10<sup>-9</sup> B) 0.93 <sup> </sup> C) 9.3 × 10<sup>6</sup> D) 1.1 × 10<sup>8</sup> E) 18.18 , where the molar mass of argon is 39.948. The concentration of argon in the atmosphere is ________ ppm.


A) 9.3 × 10-9
B) 0.93
C) 9.3 × 106
D) 1.1 × 108
E) 18.18

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