1) [4] For each of the following, calculate the molar mass (kg/kmol) : a) Ethanol b) Pentane c) Sulfur dioxide, SO2 d) Iron (III) sulphate, Fe2(SO4)3 2) [4] For each of the following, calculate the amount of kilomoles (kmol): a) 138kg of ethanol b) 361kg of pentane c) 32kg of sulfur dioxide ) 267kg of Iron (III) sulphate, Fe2(SO4)3 3) [4] For each of the following, calculate the mass fraction or percent of the given element: a) The oxygen (O) in ethanol b) The carbon (C) in pentane c) The sulfur (S) in sulfur dioxide d) The sulfur (S) in Iron (III) sulphate, Fe2(SO4)3 4) [8] For each of the following, write the chemical formula and a balanced equation for combustion: a) Butane b) Decene c) Nonyne d) Octanol