copper (II) sulphate salt Apparatus Eye protection Each working group will require: Glass beaker (100 cm3) Conical flask (100 cm3) Spatula Glass stirring rod Filter funnel (Note 1) Filter paper (Note 2) Bunsen burner‚ tripod and gauze Heat resistant mat PROCEDURE Stage 1 a Add 20 cm3 of the 0.5 M sulfuric acid to the 100 cm3 beaker. Heat carefully on the tripod with a gentle blue flame until nearly boiling. SAFETY: Be very careful not to knock the tripod while the beaker is on
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COLUMN AND THIN LAYER CHROMATOGRAPHY Mark Paul P. Pastrana‚ Mariah Ericka M. Patawaran‚ Princess Juneire M. Peligro‚ Francisco Q. Pua III‚ Rose Anne L. Quyo and Janille P. Ragpa Group 8 2B Medical Technology Organic Chemistry Laboratory ABSTRACT The main objectives were to separate the colored components of malunggay leaves by means of column chromatography‚ as well as to determine the purity of the components using thin layer chromatography (TLC) and measure the Rf values of the colored
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ASPERN PAPERS In actual life‚ Henry James was said to be a solitary man‚ even though he had many friends. He was reserved and kept distance from people‚ which must be the reason why the theme of “relation” is so present in James’ work. When it comes to defining “relation” one can say that it nearly always involves a connection between two people (or groups of people)‚ two things‚ two concepts‚ etc. “Relation” could easily be the one single most important theme of The Aspern Papers‚ that is
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EG 207 Paper Lion Analysis A Great Book; There’s No Lion Walter Cronkite‚ Anderson Cooper‚ and George Plimpton; three reporters who not only reported a story‚ but decided to live their story. In mid February 1968‚ Walter Cronkite embedded himself in Vietnam during the Vietnam War to cover the Tet Offensive. In 2012‚ Anderson Cooper embedded himself in Syria during the‚ still ongoing‚ Syrian Civil War to cover the atrocities of President Assad’s regime against his own people. In 1963‚ George
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The purpose of this lab was to use gas chromatography to determine the relative amounts of the three components of gas products from the dehydration reaction of 1- and 2-Butanol with sulfuric acid and the dehydrobromination reaction of 1- and 2-Bromobutane with potassium tert-butoxide. E1 reactions are two-step unimolecular reactions. The first step of an E1 reaction occurs when a leaving group‚ which consists of a weak base‚ leaves an organic compound‚ leaving an intermediate carbocation. In the
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Figure 3.1: Typical standard chromatogram of Ritonavir and Lopinavir Figure 3.2: Typical sample chromatogram of Ritonavir and Lopinavir 3.3.2 Method validation The optimized RP-HPLC method for simultaneous assay of Ritonavir and Lopinavir was validated according to ICH guidelines with respect to system suitability‚ linearity‚ sensitivity‚ accuracy‚ precision and robustness. 3.3.3 System suitability Before sample analysis‚ the chromatographic parameters used in this analysis must conform the system
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Tiboelectric Series Lab Fleur Vande Kerckhove 9A Purpose/Aim: How do the triboelectric series from different materials classify themselves due to their affinity (gaining or losing) when being measured by a gold leaf electroscope? Hypothesis: If the materials change (from: wool‚ rabbit fur‚ cotton‚ aluminum‚ nylon‚ amber‚ celluloid‚ silver‚ silicon and acrylic) to classify their affinity of their triboelectric series then rabbit fur will have a higher affinity compared to the rest of the materials
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Lab Report Format for Separating the Components of “Panacetin” (2) and Recrystallization and Melting Point Measurement: Identifying the Components of “Panacetin” (3). Lab Notebook Title and Date Objective: Explain the purpose of the experiment and how you plan to accomplish it. Technique: Show the use of separatory funnel and evaporation of solvent setup Reaction(s): Include the main reaction for the experiment and isolation scheme Physical Data: List the molecular weight‚ melting point‚ boiling
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if one faction tried to disturb the country‚ it would not disrupt any of the other states. Madison also explains that representative democracy would be the best way to keep control over factions without completely eliminating liberty. Federalist Paper No. 10 is still very relevant in today’s political environment because factions still exist. Today‚ most factions are special interest groups because they have access to representative officials‚ which others simply do not have. Representatives sometimes
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SAMPLE PREPARATION METHODS FOR LIQUID SAMPLES Table of Contents SAMPLE PREPARATON Analytical procedures consist of numerous stages‚ the most important of which is the collection of a sample and its preparation for analysis as samples are usually not in a suitable form for direct introduction into analytical instruments (Tankiewicz et al.‚ 2011). Sample preparation can be thought of as any treatment that the sample is subjected to following its collection‚ prior to its analysis
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