How much does 11.2 liters of oxygen weigh?
January 31, 2021 | education
| 1. We are looking for the number of moles of oxygen by the formula v = V / 22.4, where v is the amount of substance, V is the volume of the substance, 22.4 l / mol is the molar volume of gases.
v = 11.2 / 22.4 = 0.5 mol
2. We are looking for the mass of a substance by the formula m = Mr * v, where m is the mass of the substance, Mr is the molecular mass.
Mr (O2) = 32 g / mol
m = 32 * 0.5 = 16 g
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