Introduction to Ideal Gasses Video Lessons

Concept

# Problem: The lowest pressure ever obtained in a laboratory setting is 4.0×10−11 Pa.At this pressure, how many molecules of air would there be in a 30°C experimental chamber with a volume of 0.090 m3?Express your answer using two significant figures.

###### FREE Expert Solution

Ideal gas equation:

$\overline{){\mathbf{P}}{\mathbf{V}}{\mathbf{=}}{\mathbf{n}}{\mathbf{R}}{\mathbf{T}}}$

n = PV/RT

###### Problem Details

The lowest pressure ever obtained in a laboratory setting is 4.0×10−11 Pa.

At this pressure, how many molecules of air would there be in a 30°C experimental chamber with a volume of 0.090 m3?