# Average number of air molecules per cubic centimeter of air

At an altitude of 45.00 km, the average atmospheric temperature is essentially 0 degrees C. What is the average number of air molecules per cubic centimeter of air at this altitude?

© BrainMass Inc. brainmass.com October 9, 2019, 4:08 pm ad1c9bdddfhttps://brainmass.com/chemistry/environmental-chemistry/average-number-of-air-molecules-per-cubic-centimeter-of-air-23217

#### Solution Preview

Note

* denotes multiplication

^ denotes power

The formula for atmospheric pressure at height h is P0= Ph * e (-Mgh/RT)

P0= 101350 N/m^2

M= 0.02897 Kg/mol for ...

#### Solution Summary

The solution calculates average number of air molecules per cubic centimeter of air

$2.19