The Ratio of Fe(NH4)2(SO4)2 x 6 H2O to green salt is 1:1 and the molar mass of the green salt is 491.25 g/mole.

Mass of Fe(NH4)2(SO4)2 x 6 H2O used: 7.202g

mass of empty beaker: 50.339g

mass of beaker and green salt: 57.225g

LIMITING REACTANT IN THE FORMATION OF Fe(C2O4)2H2O Starting with the grams of Fe(NH4)2(SO4)26H2O, calculate the moles of Fe2+ used: Calculate the moles of oxalic acid used in the formation of the yellow salt