What is the density in g/L of carbon dioxide gas at 7.40 × 102 torr and 37.0ºC? (Molar mass of carbon dioxide = 44.0 g/mol.)
2007-01-31 07:08:24 · 3 answers · asked by MEB 2 in Science & Mathematics ➔ Chemistry
PV = nRT R = 62.3 L-torr/mol-K 37C = 310K
(740torr)(V) = (1molCO2)(62.3)(310)
V = 26.1 L
44gCO2/26.1L = 1.68g/L
2007-01-31 07:17:23 · answer #1 · answered by steve_geo1 7 · 0⤊ 0⤋
Convert the standard form of the ideal gas law into a form that contains the density by substituting known relationships into the standard form of the ideal gas law.
PV = nRT
D = m/V
# moles (n) = mass (grams)/formula weight (grams per mole)
Once you do these substutions, you will be able to solve this problem. Pay attention to the gas constant you use here.
2007-01-31 07:23:42 · answer #2 · answered by Dr. G. 1 · 0⤊ 0⤋
oh s h i t ... the one thing I don't get in Chem.
i know the formula for densitiy is:
d= m/v (m=mass; v=volume)
whatever you know just fill it in???
sorry that's not more helpful.
2007-01-31 07:16:29 · answer #3 · answered by Natalie M 3 · 0⤊ 1⤋