Question

If 15.0 g CO2 (mm= 44.01 g/mol) has a volume of 0.30L at 27oC, what is the pressure in atm? Group of answer choices 27.97 atm 1230.9 atm 2.52 atm 325.0 atm

Answer 1

P = 27.97 atm

Step-by-step explanation:

PV = nRT => P = nRT/V

P = unknown

n = moles CO₂ = (15g/44.01g/mol) = 0.3408 mole

R = 0.08206 L·atm/mol·K

T = 27°C = (27 + 273)K = 300K

V = 0.30L

P = (0.3408 mole)(0.08206 L·atm/mol·K)(300K)/(0.30L) = 27.97 atm