What volume of pocl3 gas can be produced in theory when 194 g of pcl3 gas reacts with excess oxygen?

Question

Chemistry

Tess Clarke

8 January, 23:15

What volume of pocl3 gas can be produced in theory when 194 g of pcl3 gas reacts with excess oxygen?

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Cadence Fox · Answer 1

Chemical reaction: 2PCl₃ + O₂ → 2POCl₃.

m (PCl₃) = 194 g.

n (PCl₃) = m (PCl₃) : M (PCl₃).

n (PCl₃) = 194 g : 137,33 g/mol.

n (PCl₃) = 1,412 mol.

From chemical reaction: n (PCl₃) : n (POCl₃) = 1 : 1.

n (POCl₃) = 1,412 mol.

V (POCl₃) = n (POCl₃) · Vm.

V (POCl₃) = 1,412 mol · 22,4 mol/dm³.

V (POCl₃) = 31,64 dm³ at normal pressure and temperature.