Answer :
The number of moles of gas is 0.00559 mol.
Calculation of the number of moles of gas:
Since
V = Volume = 140mL = 0.14L
T = Temperature = 296K
P = Pressure 98.2kPa = 98200Pa
Also,
Recall: 101325Pa = 1atm
Now
98200Pa = 98200/101325 = 0.97atm
And,
R = 0.082atm.L/Kmol
So,
The number of mole (n) should be
PV = nRT
n = PV /RT
n = (0.97x0.14)/(0.082x296)
n = 0.00559 mol
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Answer:
0.00559 mol
Explanation:
The following data were obtained from the question:
V = 140mL = 0.14L
T = 296K
P = 98.2kPa = 98200Pa
Recall: 101325Pa = 1atm
98200Pa = 98200/101325 = 0.97atm
R = 0.082atm.L/Kmol
n =?
The number of mole (n) can be obtained as follows:
PV = nRT
n = PV /RT
n = (0.97x0.14)/(0.082x296)
n = 0.00559 mol
Therefore, the number of mole of the gas present is 0.00559 mol