Question

air contains nitrogen, oxygen, argon, and only traces of other gases. if the partial pressure of nitrogen is 587 mm hg, oxygen is 158 mm hg, and argon is 7 mm hg, what is the atmospheric pressure? 752 mmhg 892 mmhg 776 mmhg 702 mmhg 876 mmhg

Explanation:

Step1: Recall Dalton's Law of Partial Pressures

Dalton's Law states that the total pressure of a mixture of gases is the sum of the partial pressures of each individual gas. Mathematically, \(P_{total}=P_1 + P_2+P_3+\cdots\)
Here, \(P_{N_2} = 587\space mmHg\), \(P_{O_2}=158\space mmHg\), \(P_{Ar} = 7\space mmHg\)

Step2: Calculate the total (atmospheric) pressure

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$$

Answer:

752 mmHg