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Chemistry, 04.05.2021 23:00 linda3025

PLEASE HELP 2. A 20.0 gram sample of oxygen gas (O2) is collected at 27 oC and 0.910 atm. What volume of oxygen is this?
A.16.9 L
B.1.22 L
C.1.52 L
D.20.9 L

4.What is the molecular weight of a gas with a density of 1.20 g/L at 750 mmHg and 20 oC?

A. 9.20 g/mol
B.19.2 g/mol
C.49.2 g/mol
D.29.2 g/mol

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