Mass Mol Atoms Moles Mol Mass Moles Atoms g mol Atoms Moles How many atoms are in 1 g of What is the mass of 1 the substance shown below? Mole of the substance shown below? 10 g of the substance below equals how many moles? If 1/8 of the 1 mole of iron atoms shown here turn to rust (Fe2O3) upon exposure to moisture, what is the mass of how many What is the mass of 5,000 Fe2O3 and moles of Fe2O3 are formed? Copper atoms?