Solve: What is the volume of a container that can hold 0.50 mole of gas at 25.0°C and 1.25atm?
Given: V1 = ?
n = 0.50 mole
T = 250C + 273.15= 298.15 K
P = 1.25 atm
R = 0.0821 L atm/ mol K
Given:
P = 1.25 atm
V = unknown
n = 0.50 mol
R = 0.0821 L atm mol−1 K−1
T = 25.0°C + 273.15 = 298.15 K
Formula: PV = nRT
Solution:
The ideal gas law relates the amount of gas present to its pressure, volume, and temperature.
The ideal gas equation can be expressed as: PV = nRT
Rearrange the equation to solve for V:
V = nRT / P
Plug in the numbers:
V = (0.50 mol × 0.0821 L atm mol−1 K−1 × 298.15 K) / (1.25 atm) = 9.79 L
V = 9.79 L
Answer: The volume of a container is 9.79 L
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