Overview
You should write a lab report in same with lab format. In conclusion part we need to find percent yield. Just put the calculations below
3g benzoic acid . 1g/ 122 mol= 0.0459 mol
0.2459 .136g/ 1 mol = 3.34 g
Percent Yield=Actual Yield/ Theoretical Yield x 100%
= 1.12 / 3.34 x 100%
= %33.53