Air Contains 78% N₂, 21% O₂, and 1% Ar, by Volume

question 47

Multiple Choice

Air contains 78% N₂, 21% O₂, and 1% Ar, by volume. What is the density of air at 1,000.torr and -10°C?

• A)1.0 g/L
• B)6.1 g/L
• C)1.3 g/L
• D)1.8 g/L
• E)0.56 g/L

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Definitions:

Par Value

The face value of a bond or a stock as stated by the issuing company, which does not necessarily match the market value.

Annual Dividend

The total amount of dividends a shareholder receives per share within a year.

Market Rate

The prevailing interest rate available in the marketplace for securities or loans of a similar risk and maturity profile.

Constant Dividend

A dividend policy in which a company pays a fixed amount in dividends to shareholders permanently or over a long period.