Density of a Mixture Question
Favorites|Homepage
Subscriptions | sitemap
HOME > > Density of a Mixture Question

Density of a Mixture Question

[From: ] [author: ] [Date: 12-07-09] [Hit: ]
45L = 1.(4 x 1.145 + 1 x 1.309) / 5 = 1.178g/L which you probably ought to round to 3 digit like 22.4L or the molar masses = 1.......
Considering air as a 4:1 mixture of nitrogen and oxygen, what is the density of air at 25 °C and
1 atm?

-
The volume of 1 mole of a gas at 25°C is
22.4L x 298K/273K = 24.45L

The densities of the elements at 25°C are
O2: 32.0g/24.45L = 1.309g/L
N2: 28.0g/24.45L = 1.145g/L

A weighted average of the two gases is
(4 x 1.145 + 1 x 1.309) / 5 = 1.178g/L which you probably ought to round to 3 digit like 22.4L or the molar masses = 1.18g/L
1
keywords: Mixture,Question,Density,of,Density of a Mixture Question
New
Hot
© 2008-2010 http://www.science-mathematics.com . Program by zplan cms. Theme by wukong .