Calculate the amount of oxygen required to burn 6.4 g sulfur
| February 8, 2021 | education
As a result of the combustion of sulfur, a gas is formed – sulfur dioxide.
S + O2 = SO2.
Knowing the mass of burnt sulfur, we determine the number of moles.
n (S) = m / Mr = 6.4 g / 32 g / mol = 0.2 mol.
The number of moles of oxygen and sulfur will be equal according to the reaction equation.
n (S) = n (O2) = 0.2 mol.
The amount of oxygen required for the complete combustion of sulfur.
V (O2) = n • Vm = 0.2 mol • 22.4 L / mol = 4.48 L.
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