Respuesta :

above 80 grams 6 grams

Answer : The number of oxygen atoms are, [tex]37.94\times 10^{23}[/tex]

Explanation : Given,

Mass of [tex]N_2O_3[/tex] = 160 g

Molar mass of [tex]N_2O_3[/tex] = 76.01 g/mole

First we have to calculate the moles of [tex]N_2O_3[/tex]

[tex]\text{Moles of }N_2O_3=\frac{\text{Mass of }N_2O_3}{\text{Molar mass of }N_2O_3}=\frac{160g}{76.01g/mole}=2.1mole[/tex]

As we know that [tex]N_2O_3[/tex] contains 2 number of nitrogen atoms and 3 number of oxygen atoms.

Now we have to calculate the number of atoms of oxygen.

As, 1 mole of [tex]N_2O_3[/tex] contains [tex]3\times 6.022\times 10^{23}[/tex] number of oxygen atoms

As, 2.1 mole of [tex]N_2O_3[/tex] contains [tex]2.1\times 3\times 6.022\times 10^{23}=37.94\times 10^{23}[/tex] number of oxygen atoms

Therefore, the number of oxygen atoms are, [tex]37.94\times 10^{23}[/tex]

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