Synthesis and Component Analysis of an Iron (Iii) Oxalate Complex
Experiments 4A-C:
Synthesis and Component Analysis of an Iron (III) Oxalate Complex
My Name
TA, Section B##
Work Performed on 10/23, 10/30, & 11/4, 200#
Report due Tuesday, November ##, 200#
1. Abstract
This experiment initially involved the synthesis of an iron (III) oxalate complex with the general formula Kw[Fex(C2O4)y]·zH2O. The variables x, y, and z were determined through the duration of the entire experiment. From 1.2000g of Fe(NH4)2(SO4)2 were synthesized 1.1###g of K3[FeIII(C2O4)3]·3H2O, owing for a percentage yield of 74.###%. A percentage yield of 11#.##% was also calculated, had the final product been K[FeIII(C2O4)2]·2H2O. This value was rejected because experimental errors are never to exceed theoretical values, which are taken on assumption that the experiment is carried out in entirely ideal environmental settings, which are impossible to attain entirely. In 4B, redox titrations were used to calculate the relative composition of oxalate within the iron (III) oxalate salt. The millimoles of oxalate were found to be.64#, .63#, .62#, and .62#, for trials A-D, respectively. The weight percentages for each trial (A-D) were 54.0#%, 53.4#%, 54.1#%, and 53.##%, with an average of 53.## ± .5###%. It was also found that the four trials yielded calculations of 61#, 60#, 61#, and 61# mmol of C2O42- per 100g of complex analyzed. The averaged value, with the inclusion of two standard deviations, reported to be 61#
± 7.## mmol of C2O42- per 100g of complex analyzed. In 4C, Spectrophotometry was used to determine the iron content in the same iron (III) oxalate complex. The average weight percentages of Fe3+ for samples 3-5 of the unknowns were found to be 12.##%, 12.7#%, and 14.##%, with an average weight percentage of 13.09 ± 2.58%. The number of millimoles present in 100g of complex were found to be, for unknown samples 3-5: 215.### mmol Fe3+, 227.### mmol Fe3+, and 259.### mmol Fe3+, with an average of 23#.### ±4#.## mmol Fe3+ in every
Synthesis and Component Analysis of an Iron (III) Oxalate Complex
My Name
TA, Section B##
Work Performed on 10/23, 10/30, & 11/4, 200#
Report due Tuesday, November ##, 200#
1. Abstract
This experiment initially involved the synthesis of an iron (III) oxalate complex with the general formula Kw[Fex(C2O4)y]·zH2O. The variables x, y, and z were determined through the duration of the entire experiment. From 1.2000g of Fe(NH4)2(SO4)2 were synthesized 1.1###g of K3[FeIII(C2O4)3]·3H2O, owing for a percentage yield of 74.###%. A percentage yield of 11#.##% was also calculated, had the final product been K[FeIII(C2O4)2]·2H2O. This value was rejected because experimental errors are never to exceed theoretical values, which are taken on assumption that the experiment is carried out in entirely ideal environmental settings, which are impossible to attain entirely. In 4B, redox titrations were used to calculate the relative composition of oxalate within the iron (III) oxalate salt. The millimoles of oxalate were found to be.64#, .63#, .62#, and .62#, for trials A-D, respectively. The weight percentages for each trial (A-D) were 54.0#%, 53.4#%, 54.1#%, and 53.##%, with an average of 53.## ± .5###%. It was also found that the four trials yielded calculations of 61#, 60#, 61#, and 61# mmol of C2O42- per 100g of complex analyzed. The averaged value, with the inclusion of two standard deviations, reported to be 61#
± 7.## mmol of C2O42- per 100g of complex analyzed. In 4C, Spectrophotometry was used to determine the iron content in the same iron (III) oxalate complex. The average weight percentages of Fe3+ for samples 3-5 of the unknowns were found to be 12.##%, 12.7#%, and 14.##%, with an average weight percentage of 13.09 ± 2.58%. The number of millimoles present in 100g of complex were found to be, for unknown samples 3-5: 215.### mmol Fe3+, 227.### mmol Fe3+, and 259.### mmol Fe3+, with an average of 23#.### ±4#.## mmol Fe3+ in every