Cоnsider the reаctiоn оf sodium metаl аnd oxygen described by the balanced equation: 4 Na + O2 → 2 Na2O If 2.55 mol of sodium reacts, and 75.0 g of Na2O is obtained, what is the percent yield? Write your answer in the textbox. You must have the correct number of significant figures and unit to receive the full credit. (Show your work on a scratch paper and submit a scan of the file on Final Work module within 5 min after your submit this exam.)