Respuesta :

eainthmuekhin14

moles of He=4 L/22.4 L=0.1786 mol

moles of Ne=2 L/22.4 L=0.0893 mol

total moles of the gas mixture

=0.1786+0.0893

=0.2679 mol

mole fraction of He=0.1786 mol/0.2679 mol=0.6667

mole fraction of Ne=0.0893 mol/0.2679 mol=0.3333

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