Calculate the mass of iron(III) oxide that contains a million iron atoms. Be sure your answer has a unit symbol if necessary, and round it to significant digits.
Added by Carrie M.
Step 1
Given that 1 mole of iron contains 6.022 x 10^23 iron atoms, we have: 1 million iron atoms = 1 x 10^6 iron atoms Number of moles of iron = (1 x 10^6) / (6.022 x 10^23) = 1.66 x 10^-18 moles Show more…
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