What is the theoretical yield of Li3N in grams when 12.4 g of Li is heated with 33.9 g of N?6Li (s) + N(g)  2 Li3N

 Be sure your answer has the correct number of significant digits. 20.7 g

 If the actual yield of Li3N is 5.65 g, what is the percent yield of the reaction? Be sure your answer has the correct number of significant digits. % x10 X S