Question
Which substance in each of the following pairs of quantities contains more moles of oxygen?a. $1 \mathrm{mol} \mathrm{Al}_{2} \mathrm{O}_{3}$ or $1 \mathrm{mol} \mathrm{Fe}_{2} \mathrm{O}_{3}$b. $1 \mathrm{mol} \mathrm{SiO}_{2}$ or $1 \mathrm{mol} \mathrm{N}_{2} \mathrm{O}_{4}$c. 3 mol $\mathrm{CO}$ or $2 \mathrm{mol} \mathrm{CO}_{2}$
Step 1
For example, in $\mathrm{Al}_{2} \mathrm{O}_{3}$, there are 2 atoms of Aluminum and 3 atoms of Oxygen in one molecule. Therefore, in one mole of $\mathrm{Al}_{2} \mathrm{O}_{3}$, there are 3 moles of Oxygen. Show more…
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