Percent Yield Lab I. Purpose: To determine the percent yield of the compound Magnesium Oxide II. Hypothesis: The percent yield of magnesium oxide will be 99%. III. Materials: ¡± Ring Stand ¡± Ring ¡± Clay Triangle ¡± Bunsen Burner ¡± Crucible with lid ¡± Tongs ¡± Magnesium ribbon ¡± Balance ¡± Goggles ¡± Water IV. Procedure: 1) Set up the ring stand with the ring. Place the clay triangle on the ring and place the burner under the clay triangle. 2) Clean the crucible and its lid with …showed first 75 words of 947 total…

…showed last 75 words of 947 total…caution would be used when handling the extremely hot crucible and the whole magnesium ribbon would be put in the crucible so none of the products would be lost. Conclusion: The purpose of this experiment was achieved. Because the mass of both the crucible and the magnesium ribbon was known after the experiment was completed, it is possible to calculate the theoretical and percent yield. The initial hypothesis was very of close the final product.