Strontium metal may be obtained from strontium oxide, $\text{SrO}$, by reduction with aluminium. One possible reaction is shown below. $6\text{SrO} + 2\text{Al} \rightarrow 3\text{Sr} + \text{Sr}_3\text{Al}_2\text{O}_6$ What is the greatest mass of strontium metal that can be made from the reduction of $100\,\text{g}$ of strontium oxide by means of this reaction?
- A$41.3\,\text{g}$
- B$42.3\,\text{g}$
- C$84.6\,\text{g}$
- D$169.2\,\text{g}$