Helium-oxygen mixtures are used by divers to avoid the

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Helium-oxygen mixtures are used by divers to avoid the bendsand are used in medicine to treat some respiratory ailments. What percent (by moles) of He is present in a helium-oxygen mixture having a density of 0.508 g/L at 25 C and 721 mmHg?

Reference no: EM13636387

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