The question is incomplete, here is the complete question:
A sample of gas weighs 10.1 g and occupies a volume of 5.65 L at 60 °C and 580 torr. Identify the gas sample.
(a) (molar mass = 119.4 g/mol)
(b) (molar mass = 44.02 g/mol)
(c) (molar mass = 64.07 g/mol)
(d) (molar mass = 17.03 g/mol)
(e) (molar mass = 70.90 g/mol)
<u>Answer:</u> The gas sample is having molar mass of 64 g/mol
<u>Explanation:</u>
To calculate the molar mass of the gas, we use the equation given by ideal gas equation:
PV = nRT
Or,
where,
P = Pressure of the gas = 580 torr
V = Volume of the gas = 5.65 L
w = Weight of the gas = 10.1 g
M = Molar mass of gas = ?
R = Gas constant =
T = Temperature of the gas =
Putting values in above equation, we get:
Hence, the gas sample is having molar mass of 64 g/mol
