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Sagot :
If the density of a gas is 1.2g/l at 745 torr and 20 degree C, then the molar mass of gas is 30 g/mole.
What is ideal gas equation?
Ideal gas equation gives idea about the behavior of gas at different condition & represented as:
PV = nRT, where
- P = pressure = 745 torr
- V = volume = 1L
- n = moles = ?
- R = universal gas constant = 62.36 L.Torr / K.mol
- T = temperature = 20 degree C = 293K
On putting all these value in the above equation, we get moles
n = (745)(1) / (62.36)(293) = 0.04 mole
Molar mass will be calculate by using the below equation:
M = W/n, where
- W = given mass = 1.2g
- n = moles = 0.04 mol
M = 1.2 / 0.04 = 30g/mol
Hence required molar mass of gas is 30g/mol.
To know more about ideal gas equation, visit the below link:
https://brainly.com/question/15882021
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