Answer: V = 5.60 L
Step-by-step explanation:
At STP (standard temperature and pressure) are the following values.
T = 273K of 0°C
P = 1.00 atm
R is the gas constant.
R = 0.08206 L atm/K mol
To find the volume in liters we will use PV = nRT.
Step 1: Convert 8.00 g O₂ to moles O₂.
8.00 g O₂ x (1 mol O₂/32.00 g O₂) = 0.250 mol O₂
Step 2: Rearrange PV = nRT to isolate V.
V = nRT/P
Step 3: Insert the known values into the equation and solve for V.
V = [(0.250 mol O₂) x (0.08206 L atm/ K mol) x 273K] / 1.00 atm
V = 5.60 L
Note that all units cancel except for L.