Answer: 0.00176 moles of gas present.
Step-by-step explanation:
We can use the Ideal Gas Law to solve for the number of moles of gas present:
PV = nRT
where:
P = pressure (in atm)
V = volume (in L)
n = number of moles
R = ideal gas constant (0.08206 L·atm/mol·K)
T = temperature (in Kelvin)
First, we need to convert the temperature from Celsius to Kelvin:
T = 25ºC + 273.15 = 298.15K
Plugging in the given values, we get:
(3.81 atm) (0.044 L) = n (0.08206 L·atm/mol·K) (298.15 K)
Solving for n, we get:
n = (3.81 atm x 0.044 L) / (0.08206 L·atm/mol·K x 298.15 K)
n = 0.00176 mol
Therefore, there are 0.00176 moles of gas present.