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MysticDude
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Homework Statement
At a height of 300km above the Earth's surface, an astronaut finds that the atmospheric pressure is about 10-8 mmHg and the temperature 500 K. How many molecules are there per milliliter at this altitude?
Homework Equations
The Attempt at a Solution
I first thought that I had to calculate the amount of moles in area then multiply that by Avogadro's number. But then I realized that there is no amount of volume given here, only the height, as I was thinking about using the Ideal Gas Law. All I need is the volume, but I don't know how to get it. Was I even on the right track here?