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1.6 Theoretical and Percent Yields

Lesson Summary

Suppose you react 81 grams of Al (atomic mass = 27 g/mol) with 213 grams of Cl2 (M.W. = 71 g/mol), and you obtain 133.5 grams of AlCl3, according to the following equation:

Please calculate:

1. The limiting reactant?

2. The theoretical yield?

3. The percent yield?

4. How many grams of the excess reagent are left over, once the reaction is completed?