Question

please can you tell me how the person calculated the percent recovery and if it's correct ???

Reactions: Reaction of Benzoic Acid with base Data and Calculations: Measurements Benzoic acid Benzocaine 9-Fluorenone Acid, Base, Neutral 0.052g 52mg 0.057g- 57mg 0.051g 51mg substances initial mass. Culture tube initial 11.431g 11.431g 11.431g Culture tube final 11.578g 11.578g 11.578g Aluminum-weighing dish 0.413g 0.415g initial Aluminum-weighing dish 0.429g 0.431g Final Recovered mass 0.016g 16mg 0.018g 18mg 0.147g 1.47mg Percentage Recovery 32.5% 35.6% 31.8% Melting Point 122°C 88°C 80.5°C

Answer 1

10 percentage Percentage recovery - Final recovered massa ex100% Initial substance massa Benzoic acid Benzocaine ht 19-Fuorenone Ibing x 100% Percentage Recovery 18 mg x 100 % 5tng 52mg I 1.47mg x 100% 5ing = 30% 777 = 31.58% = 2.889.