Barium oxide was synthesized form the reaction of barium and oxygen in a crucible according to the balanced chemical reaction below. Water was used to convert any side products to Bao, and then the crucible was heated to drive off any remaining moisture. The mass data from the
experiment is shown below.
2 Ba(s) + O2(g) → 2 Bao(s)
MASS DATA
Mass of Crucible
42.424 g
Mass of Crucible + Lid
47.6894 g
Mass of Crucible + Lid + Ba
49.7842 g
Mass of Crucible + Lid + Bao after 1st heating
50.7265 g
Mass of Crucible + Lid + Bao after 2nd heating
49.6894 g
Mass of Crucible + Lid + Bao after 3rd heating
49.6891 g
What is the percent yield of BaO in the reaction?
42.75%
100.3%
O 85.49%
99.72%