Question

How many moles of oxygen are present in 100 L of gas.
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Answer 1

Answer:

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Explanation:

At STP (at 1 atm = 101.325 KPa )one mole = 22.4 liter or = 22.71 L (at 1 bar =100 KPa) assuming ideal gas behavior at 0 °C or 32 °F 1 liter of oxygen is corresponds to 1/22.4 mole or 1/22.71 mole according to whatever STP condition you use atm or bar as absolute pressure

Answer 2

Answer:

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Explanation:

Number of moles of air in 22.4 L at NTP = 1 mole

Number of moles of air in 1 L at NTP = 22.41 mole

Now,

Number of moles of oxygen in 1 L at NTP = 22.41 ×0.21=0.0094 mol