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July 2, 2015

Homework Help: chemistry

Posted by caroline on Sunday, October 24, 2010 at 8:39pm.

A sample of a breathing mixture for divers contained 34.3% helium, He; 51.7% nitrogen, N2; and 14.0% oxygen, O2 (by mass). What is the density of this mixture at 22C and 748 mmHg?

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