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Calculate the % yield if 1.06 moles of Na reacts with 0.17 moles of O2 to...

Calculate the % yield if 1.06 moles of Na reacts with 0.17 moles of O2 to make 0.28 moles of Na2O according to 4 Na(s) + O2(g) → 2 Na2O(s)"

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