CHEM 3341 Lecture Notes - Lecture 4: Katie Nolan, Column Chromatography, Ferrocene
Document Summary
The purpose of the experiment was to use column chromatography to separate and purify a mixture of ferrocene and acetylferrocene, identify them by using melting point, and calculate the composition of the mixture. Percent composition = ( grams recovered / grams originally ) x 100. Percent recovery = ( total grams recovered / total original grams ) x 100. The separation was not very successful considering the percent recovery. The mass recovered of the acetylferrocene (4. 57g) was excessively high. The round bottom flask the extract was placed in was weighed three times. The weight was the same as recorded in my lab notebook from previous experiments. The range of the melting point for the acetylferrocene was 4. 7 c and higher than the accepted value, showing that the extract was indeed impure. The melting point of ferrocene was lower than the accepted value with a range of 4. 1 c.
