Calcium Absorption Essay

In order to determine the surfeit of nuclear number 20 and magnesium in an mysterious try out of limestone, the utilization of atomic preoccupation spectrophotometry can help in deciphering the mystical concentrations of each molecule in the limestone sample. nuclear preoccupation spectrophotometry, emits radiation of the correct relative frequency that is passed through a flame and the earnestness of the transmitted radiation is measured?. The calcium concentration or ppm can be measured victimization the absorbance of the solution and study it to a standard curve for calcium?. Whereas magnesium, needs to be determined using the standard addition method.The concentrations of each single molecule can be presented as CaO and MgO percentages of the unknown limestone sample. Materials and Methods The compound calcium carbonate (CaCO3, CAS 471-34-1, 204. 89ppm) was utilized to compare its absorbance to the unknown sample of limestone 8066 on the standard curve. Moreover, magn esium sulfate heptahydrate (MgSO4*7H2O, CAS 10034-99-8, 40. 8ppm) was also utilized to compare its absorbance against that of the unknown. science lab personnel from the CSU Eastbay department of chemistry stock room performed all calibrations on the Perkin Elmer AAnalyst 300 atomic absorption spectrometer.All chemicals used in this experiment were obtained from the CSU Eastbay department of chemistry stockroom. A Denver Instrument Co. Sargent-Welch analytical sleep was used to determine the throne of the unknown, mass of calcium carbonate, and mass of magnesium sulfate heptahydrate. A Perkin Elmer AAnalyst 300 atomic absorption spectrometer equipped with a Lumina calcium and Magnesium Lamp was used to determine the absorbance. The instrument used Argon and Acetylene as the carrier gas and oxidant gas, respectively.