If the total atmospheric pressure of a planet was 890 mmHg and the gases in the atmosphere were 10% oxygen, 80% nitrogen, 9.5% carbon dioxide, and .5% other gases, what is the partial pressure of each gas?

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Answer 1 · 2016-06-23T15:15:05

The total pressure is the sum of the individual partial pressures.

And thus $p_"carbon dioxide"$ $=$ $890*mm*Hgxx9.5%$ ;

$p_"dioxygen"$ $=$ $890*mm*Hgxx10%$

$p_"dinitrogen"$ $=$ $890*mm*Hgxx80%$

$p_"carbon dioxide"$ $=$ $890*mm*Hgxx9.5%$

$p_"other gases"$ $=$ $890*mm*Hgxx0.5%$