Answer:
1.18 atm
Step-by-step explanation:
We need to use the Ideal Gal Law for this question:
PV = nRT, where P is the pressure, V the volume, n the moles, R the gas constant, and T the temperature in Kelvins.
I'll choose a gas constant that has units compatible with the given conditions:
R = 0.08206 (L*atm)/(K*mol)
P = (8.5 moles)*(0.08206 (L*atm)/(K*mol))*(365.1K)
Make sure all the units cancel except atmospheres.
P = 1.18 atm