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At rest, a person inhales 9. 72 x 10^21 nitrogen molecules in an average breath of air. How many grams of nitrogen gas are inhaled?

Sagot :

The grams of nitrogen gas inhaled are 0.0322816 moles.

What is mass?

Mass is the quantity of matter of a physical body.

No. of molecule inhaled by a person is [tex]9. 72 \times 10^2^1[/tex]

Nitrogen is a diatomic molecule, so it will contain 2 atoms.

Number of nitrogen atoms

[tex]9. 72 \times 10^2^1 \times 2 = 19.44 \times 10^2^1[/tex]

1 mole contain = [tex]6.022 \times 10^2^3[/tex]

So, number of moles of nitrogen

[tex]\dfrac{9. 72 \times 10^2^1}{6.022 \times 10^2^3} = 3.22816 \times 10^-^2\\\\= 0.0322816 \;moles[/tex]

Thus, the grams of nitrogen gas inhaled are 0.0322816 moles.

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