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True/False
If 10.3 g of Ne and 10.3 g of N2 are put into a 7.0 L container, the partial pressure of N2 will be less than the partial pressure of Ne in the container.

Answer :

Answer:

True.

Explanation:

Moles =mass/molarmass

Moles Ne =mass/molarmass

[tex]=\frac {10.3g}{(20.18g per mole)}=0.510mol[/tex]

Moles [tex]N_2[/tex] =mass/molarmass

[tex]=\frac {10.3g}{(28g per mole)}=0.368mol[/tex]

Let Temperature be 273K (assumed)

[tex]PV=nRT[/tex]

[tex]P=\frac {nRT}{V}[/tex]

[tex]P_{Ne}=\frac {0.510mol \times 0.08206L atm K^{-1} mol^{-1} \times 273K}{7.0L}[/tex]

[tex]P_{Ne}=1.63atm[/tex]

[tex]P_{N_2}=\frac {0.368mol \times 0.08206L atm K^{-1} mol^{-1} \times 273K}{7.0L}[/tex]

[tex]P_{N_2}=1.17atm[/tex]

We see here partial pressure of [tex]N_2[/tex] (1.17atm) is less than that of  partial pressure of Ne (1.63 atm).

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