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Sagot :
There are 1.554 moles are in the sample of gas when a gas has a volume of 27. 5 L at 302 K and 1. 40 atm.
Calculation,
The given question is solved by the using of ideal gas equation which is shown below.
PV = nRT .... ( i )
where , P is he pressure of the gas = 1. 40 atm
V is the volume occupied by the gas = 27.5 L
R is the universal gas constant = 0.082 L atm/K mol
T is the temperature = 302 K
n is he number of moles of the gas = ?
By putting the value of pressure P , volume V , Universal gas constant and temperature T in the equation ( i ) we get the number of moles.
1. 40 atm × 27.5 L = n × 0.082 L atm/K mol× 302 K
n = 1. 40 atm × 27.5 L/0.082 L atm/K mol× 302 K = 1.554 mole
There are 1.554 moles are in the sample of gas
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