A cylinder of O2(g) used in breathing by emphysema patients has a volume of 8.00 L at a pressure of 16.0 atm. If the temperature of the cylinder is 33.8°C, what mass (in g) of oxygen is in the cylinder?
ideal gas equation is
PV = nRT
or
16.0 atm * 8.00 L = n * 0.0821 L-atm / mole-K * 306.8 K
or
n = 5.08 mole.
thus
mole of O2 gas = 5.08 mole.
thus
amount of O2 in cylinder = mole * molar mass = 5.08 mole * 32 g / mole = 162.6 g (answer)
A cylinder of O2(g) used in breathing by emphysema patients has a volume of 8.00 L...
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