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Isabell Akers Lab 9/24/15 Lab Report Synthesis of Magnesium Oxide Introduction: The purpose of this lab was to find how much MgO (Magnesium oxide) was produced from 2g of Mg, and calculate the percent yield of MgO. Materials & Methods: - Magnesium flakes - Crucible bowl - Crucible lid - Scale in grams - Bunsen burner - Stand - Clay triangle - Ring clamp - Sand bowl - Methane gas - Tongs - Timer First, we weighted the crucible, its’ mass was 11.747g. Then we needed to weigh out 2.00g of MgO, and place in the crucible, the total mass of the crucible was now 13.747g. We then heated it over the bunsen burner for 5 minutes with the crucible lid on, after the time was up we cracked the lid open and continued to heat it over the bunsen burner for 28 minutes when the red glow stopped. When the red glow stopped we took the crucible off of the heat and cooled it for 13min. We then weighed the crucible again and its’ mass was 14.70g. Results: We have our reaction equation Mg + O = MgO, but we needed to balance it. This equation will come in handy when we need to convert moles of Mg to moles of MgO. 2Mg + O = 2MgO To find out how much MgO was produced we needed to go through a series of steps. First we needed to find the molar mass of both Mg and MgO. Mg = 24.31g
