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Agas diffuses 1/7 times faster than hydrogen gas (h2). what is the molar mass of the gas? 100.10 g/mol 98.78 g/mol 86.68 g/mol 79.98 g/mol
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18. What is the density of a substance with a mass of 0.90 kg and a volume of 1.2 mL?
21. An oxygen...
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