The volume of the gas sample will be 1.79 L.
A liquid, solid, or gas's volume represents the amount of three-dimensional space it occupies. Although there are many additional units that can be used to indicate volume, the most used ones are liters, cubic meters, gallons, milliliters, teaspoons, as well as ounces.
Given data :
Mass of [tex]O_{2}[/tex] = 1.20 g
Mass of [tex]N_{2}[/tex] = 1.43 g
Number of moles can be calculated by suing the formula:
Number of moles of [tex]O_{2}[/tex] = Mass / molar mass = 1.20 / 32 = 0.03 mol
Number of moles of [tex]N_{2}[/tex] = Mass / molar mass = 1.43 / 28 = 0.05 mol
So, the total count of moles can be calculated by :
Total moles = moles of [tex]O_{2}[/tex] + moles of [tex]N_{2}[/tex]
Total moles = 0.03 + 0.05 = 0.08 mol
The volume of the gas at STP can be calculated as:
Volume = 0.08 mol × 22.4 mol/L
Volume = 1.79 L
Therefore, the volume of the gas sample will be 1.79 L.
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