Calculate the mass of iron(III) oxide (Fe2O3) that contains a billion (1.000 x 10^9) oxygen atoms. Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits.
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First, we need to find out how many moles of oxygen atoms are in 1.000 * 10^9 atoms. We know that 1 mole of any substance contains Avogadro's number of particles (6.022 * 10^23). So, we can calculate the number of moles of oxygen atoms as follows: Moles of Show more…
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