22 kg = 22,000 g Moles of propane = 22,000 g / 44.0962 g/mol Moles of carbon = moles of propane * 3 (because of the 3 after the C in C3H8) mass of carbon = moles of carbon * 12.011 g/mole. You get to do the math.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.