Trial 1 Trial 2 Mass of empty crucible with lid 26.679 g 26.695

Mass of Mg metal, crucible, and lid 26.981 g 27.007

Mass of MgO, crucible, and lid 27.171 g 27.204

4. Magnesium is the limiting reactant in this experiment. Calculate the theoretical yield of MgO for each trial.

• Trial 1:

• Trial 2:

5. Determine the percent yield of MgO for your experiment for each trial.

• Trial 1:

• Trial 2:

6. Determine the average percent yield of MgO for the two trials.