A Gas Mixture Consists of Equal Masses of Methane (Molecular

question 20

Multiple Choice

A gas mixture consists of equal masses of methane (molecular weight 16.0) and argon (atomic weight 40.0) . If the partial pressure of argon is 200. torr, what is the pressure of methane, in torr?

• A)80.0 torr
• B)200. torr
• C)256 torr
• D)500. torr
• E)556 torr

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Definitions:

Bipolar I Disorder

A mental health disorder characterized by extreme mood swings that include emotional highs (mania) and lows (depression).

Manic Phase

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Hypomania

A mental state characterized by elevated mood, increased activity or energy levels, and often reduced need for sleep, without the full-blown symptoms of mania.

Ion Activity

The effective concentration of an ion in solution, influenced by interactions with other ions, which affects its ability to participate in chemical reactions and processes.