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

question 52

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 ^$\circ$ C

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

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Definitions:

Millivolts

A unit of electric potential equal to one thousandth of a volt, commonly used to measure electrical potential differences.

Action Potential

A temporary reversal of the electric membrane potential of a cell, especially nerve cells, allowing for the transmission of nerve impulses.

Resting Potential

The electrical potential of a neuron when it is not active, representing the difference in charge between the inside and outside of the cell.

Axon Terminal

Bulbous end of the axon where signals move from the axon of one neuron to the dendrites or cell body of another.