(c) A sample of rust had the following composition:
51.85g of iron
22.22g of oxygen
16.67 g of water.
Calculate the following and then write the formula for this sample of rust.
number of moles of iron atoms, Fe =
number of moles of oxygen atoms, O =
number of moles of water molecules, H₂O =
simplest mole ratio Fe: O: H₂O is ........
formula for this sample of rust is
.......: