Question

Calculate the number of moles of gas present in a container that has a volume of 3.7L, is at a pressure of 1.2atm and is at a temperature of 290K given the gas constant R = 0.0821 Latm/molK. (2 pts)
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2 points
105.7 moles
0.186 moles
5.36 moles

Answer 1

To calculate the number of moles of gas present, we can use the ideal gas law equation:

PV = nRT

Where:
P is the pressure in atm
V is the volume in L
n is the number of moles
R is the gas constant (0.0821 Latm/molK)
T is the temperature in K

Rearranging the equation to solve for n, we have:

n = PV / RT

Substituting the given values:
P = 1.2 atm
V = 3.7 L
R = 0.0821 Latm/molK
T = 290 K

n = (1.2 atm * 3.7 L) / (0.0821 Latm/molK * 290 K)
n = 0.186 moles

Therefore, the number of moles of gas present in the container is 0.186 moles.