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24 July, 18:53

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

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  1. 24 July, 19:04
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    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.
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