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September 1, 2014

Homework Help: Chemistry

Posted by Jordan on Wednesday, November 12, 2008 at 9:14pm.

Each of four identical tires of a car is filled with a different gas. Gas pressure in each tire is 3.0 atm at 25oC. One tire contains neon, another argon, the 3rd one has krypton, and the last one has unknown gas. How many molecules are there in each tire?

So far, I have used PV=nRT. I set V=1. I found that n = .1226 moles. I multiplied that by avogadros number and got

7.38 * 10 ^ 22 molecules. Is this correct?

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