The Earth's Atmosphere Is Composed Nitrogen (N₂),oxygen (O₂),argon (Ar),water Vapor

question 19

Multiple Choice

The Earth's atmosphere is composed nitrogen (N₂) ,oxygen (O₂) ,argon (Ar) ,water vapor (H₂O) ,and traces of other gases.There are 6.74·10¹⁶ kg of argon in earth's atmosphere.The average mass of a mole of the atmosphere is 28.96 g and the molar mass of argon is 40 g.What is the percentage,by volume of argon in the Earth's atmosphere?

• A)0.79%
• B)0.53%
• C)0.88%
• D)1.02%
• E)0.93%

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Treasury Stock

Shares that were once part of the outstanding shares and have been bought back by the issuing company, reducing the amount of outstanding stock on the open market.

Cash

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Common Stock Account

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$5 Par Value

A nominal or face value assigned to a share of stock, in this case, set at five dollars, used in certain financial calculations and legal paperwork.