at a pressure of 390.0 kPa, a sample of ideal gas containing 110. moles of propane is collected at a tempature of 55 degrees celcius. find the volume of the propane tank used

Answer 1

Use PV = nRT and solve for V.
If you use 390 kPa you must use 8.314 for R. Remember to convert T to kelvin. Also note the correct spelling of celsius.