Chemistry: A mixture of helium, nitrogen, and oxygen has a total pressure of 756 mmHg. The partial pressures of helium and nitrogen are 229 mmHg and 205 mmHg, respectively. What is the partial pressure of oxygen in the mixture?

A mixture of helium, nitrogen, and oxygen has

Ответ:

iBrain

11.02.2022

Chemistry

322 mmHg

Explanation:

Step 1: Given data

Total pressure of the gaseous mixture (P): 756 mmHgPartial pressure of helium (pHe): 229 mmHgPartial pressure of nitrogen (pN₂): 205 mmHg

Step 2: Calculate the partial pressure of oxygen (pO₂)

The total pressure of the gaseous mixture is equal to the sum of the partial pressures of the individual gases.

P = pHe + pN₂ + pO₂

pO₂ = P - pHe - pN₂

pO₂ = 756 mmHg - 229 mmHg - 205 mmHg

pO₂ = 322 mmHg

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Ответ:

gbjjh

18.10.2021

Chemistry

Porosity is the proportion of a volume of rock or soil that consists of open spaces. ... such as granite and schist, have low porosities unless they are fractured. ... be highly porous: 40 percent in sand, and even 90 percent in clay.

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A mixture of helium, nitrogen, and oxygen has a total pressure of 756 mmHg. The partial pressures of helium and nitrogen are 229 mmHg and 205 mmHg, respectively. What is the partial pressure of oxygen in the mixture?

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