To solve this problem, we can use the ideal gas law:PV = nRTP = pressure in atmospheres (atm), V = volume in liters (L), n = number of moles of gas, R = ideal gas constant (0.08206 L·atm/(mol·K)), T = temperature in Kelvin (K)First, we need to convert the given pressure and temperature to the appropriate units:P = 325 mmHg / 760 mmHg/atm = 0.428 atmT = 85 + 273.15 = 358.15 K