analysis of cereal

Analysis of Cereal

Introduction
The goal of this lab was to analyze the iron content in both iron tablets and cereal. The methods used to achieve this goal included using spectrometry to set a calibration curve and measure iron content within the mixture of cereal and the iron tablet. The absorbances of the mixtures were used in conjunction with the calibration curve to measure the amount of iron content in each.

Experimental
First the calibration curve was made by preparing a mixture of Fe(NO3)3 and KCSN with HNO3. The five molar HNO3 was diluted to one molar HNO3 using the formula M1V1=M2V2. One hundred milliliters of .001M Fe(NO3)3 and .1M KCSN both in HNO3 were prepared by measuring out .0403 grams of Fe(NO3)3 and .972 grams of KCSN and putting each in a flask and filling that flask to 100ml with HNO3. After these solutions are prepared 1.0ml of the iron nitrate was placed in a 250ml beaker with 100ml of the KCSN solution. A dry cuvette was filled with 1.0M HNO...