(a) What is the number of molecules per cubic meter in air
Chapter , Problem 74(choose chapter or problem)
(a) What is the number of molecules per cubic meter in air at 20-C and at a pressure of 1.0 atm (# 1.01 ' 105 Pa)? (b) What is the mass of 1.0 m3 of this air? Assume that 75% of the molecules are nitrogen (N2) and 25% are oxygen (O2).
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