how do you find the volume of a certain quantities at STP ?
gasses at STP ex. 60 g of CO2
- Anonymous1 decade agoFavorite Answer
Use ideal gas law
P is the pressure in bar
V is the volume in L
n is the number of moles of gas
R is the ideal gas constant = 0.08314 bar L / mol K
T is the temperature in K
Hence for your 60 grams of CO2 (M=44g/mol)
V=60/44 mol * 0.08314 bar L/mol K * 273.15 K /1 bar = 31 L
- 1 decade ago
1 mole ( Gram molecular weight) of a compound or element is the atomic mass expressed in grams. The atomic mass can be found on a Perodic Chart of the elements.
1 mole of a gas at STP occupies 22.4 liters of space.
Atomic mass of Carbon is 12 grams/mole.
Atomic mass of Oxygen is 16 grams/mole.
Therefore the atomic mass of CO2 is (2x16) + 12 = 44.
60 grams of CO2 = 60 / 44 = 1.36 moles.
1.36 moles x 22.4 Liters = 30.46 Liters
- Anonymous1 decade ago
1 mole of any gas occupies 22.4L at STP, so you figure out the moles of CO2, and multiply by 22.4L.
- drbillmacmoLv 61 decade ago
Mole mapping! 60 of CO2 = ? moles. Moles x 22.4 L/mol = Liters.