How many moles are in a sample of a gas that has a volume of 15 liters at 25 degrees and 9.992 ATM?

Answer 1

To calculate the number of moles in a gas sample, we can use the ideal gas law equation:

PV = nRT

where:
P = pressure (in ATM)
V = volume (in liters)
n = number of moles
R = ideal gas constant (0.0821 L*atm/mol*K)
T = temperature (in Kelvin)

First, we need to convert the temperature from Celsius to Kelvin:
25 degrees Celsius = 25 + 273.15 = 298.15 K

Now we can plug in the values and solve for n:
(9.992 ATM)(15 L) = n(0.0821 L*atm/mol*K)(298.15 K)
149.88 = 24.560335n
n = 149.88 / 24.560335
n ≈ 6.108 moles

Therefore, there are approximately 6.108 moles in the gas sample.