Chemistry, 01.11.2019 02:31 breonnabyers

Agas mixture with a total pressure of 745 mmhg contains each of the following gases at the indicated partial pressures: co2, 125 mmhg; ar, 214 mmhg; and o2, 187 mmhg. the mixture also contains helium gas. what is the partial pressure of the helium gas? what mass of helium gas is present in a 12.0-l sample of this mixture at 273 k?

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Agas mixture with a total pressure of 745 mmhg contains each of the following gases at the indicated...