Chemisty molar mass and density HELP PLEASE!!
Favorites|Homepage
Subscriptions | sitemap
HOME > Chemistry > Chemisty molar mass and density HELP PLEASE!!

Chemisty molar mass and density HELP PLEASE!!

[From: ] [author: ] [Date: 11-05-24] [Hit: ]
-D = 0.R = 0.0821 (L.atm/mol.T = degree C + 273.15.......
What is the molar mass of a gas with density 0.7 g/L at 770 torr and 40 degrees C? Thanks so much!

-
D = 0.7 (g/L)
R = 0.0821 (L.atm/mol.K)
T = degree C + 273.15....=> T = 40 + 273.15 = 313.15K
P (1 atm = 760 torr or 760 mmHg) => P = 770/760 = 1.013 (atm)
Molar mass = (Density x R x T) / P
=> Molar mass = (0.7 x 0.0821 x 313.15) / 1.013 = 17.765 (g/mol) ~ 17.77 (g/mol)
1
keywords: molar,HELP,and,mass,Chemisty,PLEASE,density,Chemisty molar mass and density HELP PLEASE!!
New
Hot
© 2008-2010 http://www.science-mathematics.com . Program by zplan cms. Theme by wukong .