If I have an unknown quantity of gas at a pressure of 750 torr, a volume of 25 liters, and a temperature of 300 K, how many mole
s of gas do I have?
1 answer:
Answer:
1 mole
Explanation:
Data obtained from the question include:
P (pressure) = 750 torr
But 760torr = 1atm
750 torr = 750/760 = 0.99atm
V (volume) = 25L
T (temperature) = 300K
R (gas constant) = 0.082atm.L/Kmol
n (number of mole) =?
Using the ideal gas equation PV = nRT, we can easily find the number of mole as illustrated below:
PV = nRT
n = PV /RT
n = 0.99 x 25 / 0.082 x 300k
n = 1 mole
Therefore, the number of mole of the gas is 1 mole
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