% Recovery of Ferrocene = (0.0459/0.102g) x 100 = 45%% Recovery of Acetylferrocene = (0.054/0.102g) x 100 = 52.9 % Question 1 : According to the data, what does % recovery means? can we say that acetylferrocene has a higher % recovery because the proportion of the amount of acetylferrocene present in the analytical portion of the 50:50 mixture is 7.9% higher than Ferrocene?????Question 2 :Am I calculating my %recovery correctly???? THE EXPERIMENT:The column was packed with 12 g of alumina. A 50:50 mixture of ferrocene and acetylferrocene was weighedon the electronic balance (total mass = 0.102 g, or 102 mg), and placed at the top of the column. Elution wasfirst with hexane, which caused a yellow band to move down the white alumina. After the yellow fraction wascollected, the eluent was replaced by TBME, which was passed through the column until the red fraction wascollected. The two colored solutions were heated in a 70 °C water bath until the solvents were evaporated andcolored solids were obtained. Percent recoveries for each compound were calculated, and melting points weretaken.Data for the first, fastest-moving fraction: 0.045 g yellow solid, mp= 170-171 °C.Data for the second, slowest-moving fraction: 0.054 g orange solid, mp = 75-80 °C.

The experiment is about analyzing a mixture of ferrocene and acetylferrocene, quantitatively.1. % recovery means the percentage of a given component in the mixture that is obtained after conducting the experiment. % recovery of component A=Mass of A recovered after the experimentInitial mass of A in the mixture ×100 Since the percent recovery of a component depends on the mass of that particular component in the mixture, irrespective of its proportion in the mixture, we can't say that acetylferrocene has a higher % recovery because the proportion of the amount of acetylferrocene present in the analytical portion of the 50:50 mixture is higher than Ferrocene. Rather the percent recovery depends on how efficiently a particular component binds with the solvent.2. The mentioned calculations for percent recovery is wrong. The total mass of the mixture of acetylferrocene and ferrocene is given to be equal to 0.102 g.