What is the total pressure in a container with 256 mm Hg of Oz, 198 mm Hg of He, and 48 mm Hg of N2?

P(total pressure) = 504 mmHg = 504mm/760mm/atm = 0.663 atm

Explanation:

Apply Dalton's Law of Partial Pressures.

P(total) = ∑Partial Pressures = ∑(256mm + 198mm + 48mm) = 504 mmHg

P(total pressure) = 504 mmHg = 504mm/760mm/atm = 0.663 atm

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1.solid

2.carbon dioxide

3.helium