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Characterization of Organic Solids and Liquids by Elemental Analysis, Melting Point, Boiling Point, and Infrared Spectroscopy

저작시기 2009.08 |등록일 2010.03.26 | 최종수정일 2018.03.26 워드파일MS 워드 (docx) | 5페이지 | 가격 1,500원

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Organic chemistry lab report - Characterization of Organic Solids and Liquids by Elemental Analysis, Melting Point, Boiling Point, and Infrared Spectroscopy

목차

Methods and Background
Experimental Procedures
Data Acquisition/Presentation
1. Relevant Equations
2. Physical Properties Obtained
Structure Elucidation

Conclusion

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Methods and Background
The purpose of this lab was to find out the identity of one unknown solid sample and one unknown liquid sample by using different analytical technique and calculation. First, the empirical formula was found by calculating molecular weight, with the percentage of composition of each element in the molecule, and through calculating hydrogen index deficiency number. Boiling point and melting point and IR spectra was also obtained.
Figuring out the identity of an unknown compound is possible by obtaining its invariant physical constants. Physical constants or properties, such as boiling point, melting point, index of refracting, density, solubility and spectroscopy can be obtained by experimental methods. However, identification of an unknown compound is possible only with the previously known compounds.
A melting point of a substance is defined as the temperature at which the liquid and solid phases exist in equilibrium with


clusion
The mass spectrometry, melting point, boiling point, and infrared spectroscopy helped us determine the structure and the molecular formula of unknown solid I and unknown liquid J. Infrared spectroscopy measures the molecular vibrations due to bond stretching, bending, and rotation. IR graphs of a compound give the peaks and intensities of each of these vibrations. Specific bond vibrations occur at only certain areas; thus, giving us the functional groups that are present in an unknown compound. This graph can help us determine possible structures resembling the functional groups. Mass spectrometry determines the molecular weight and the elemental composition of a compound. This information is used to determine the empirical and the mo
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