Multiple Choice
Air is 79% N2 and 21% O2 by volume. Calculate the mass of oxygen in a 2.0-L bottle of air at 1.0 atm, 25°C.
A) 0.550 g
B) 2.36 g
C) 1.81 g
D) 2.62 g
E) none of these
Correct Answer:
Verified
Correct Answer:
Verified
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