An excellent laboratory vacuum has a pressure of 4.00x10^-18 atm, or 4.04x10^-13 Pa. How many gas molecules are there per cubic centimeter in such a vacuum at 297 K?(adsbygoogle = window.adsbygoogle || []).push({});

n/v = p/rt

n/v = 4.04x10^-13 / (8.31x297) = 1.66x10^-16 mol/m³

1.66x10^-16 mol/m³ * (1/100cm)³ = 1.66x10^-22 mol/cm³

but something is wrong, please verify and she what i am doing wrong

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# Homework Help: How many gas molecules

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