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rature. R Lab Instructor: Date: pe lid. EXPERIMENT 3 ith a v patterin Percentage Composition and Empirical Formula of Magnesium Oxide am of off as am ne odor of Pre-Laboratory Questions roximately l. Calculate the percentage by mass of each element present in the following compounds. headi a. magnesium oxide, Mgo ple rner flame, 5 mg (0.0 o successive b. magnesium nitride, Mg,N2 that was 2. Suppose 2.033 g of magnesium is heated in air. What is the theoretical amount of magnesium oxide he empirical that should be produced? ta. 75 g of thisto are c 2012 Cengage Leaming. All Rights Reserved May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole orin part.