Distillation

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    Flame Test Lab Report

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    Preparation of the sample The sample must be prepared for testing by: • Dissolving the solution in distilled water • Filtering the dissolved solution • Evaporating the water to increase the concentration Equipment 1 beaker 50ml of distilled water Stirrer 1 Funnel Filter paper 1 crucible 1 Bunsen burner 1 heatproof mat 1 tripod 1 teaspoon of soil sample 1 conical flask 1 Pipeclay triangle Method 1. Place the soil sample in the beaker and add 50ml of distilled water and stir until…

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    Analysis Of Apricot

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    Raw material: Two sweet varieties of Apricot (Prunus Armeniaca L.) namely Marghulam and Halman fully ripened fruits were collected from Gilgit Baltistan region in Northern Areas of Pakistan. Apricots were sun dried under open condition (26-34+4 C, RH 41-52%) for 16-19 days. The sun dried Apricots were packed in polyethylene bags containing 01Kg of dried fruit. Further The dried samples obtained were ground to a fine powder and stored at 5°C in air-tight containers prior to further analysis.…

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    The experiment made use of two reactions in synthesizing 1-phenylazo-2-naphtol, also known as Sudan-1. The first is the diazotization reaction in which a diazonium salt is formed from the conversion of primary aromatic amines, such as aniline, to compounds with the nitroso functional group using a nitrous acid, such as HNO2. The diazonium salt was then used as an electrophile in a coupling reaction with an aromatic compound, β-naphthol. Recrystallization was conducted and yielded 0.18 g of a…

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    Heterogeneous Mixture

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    Which one of the fo llowing is often easily separated into its components by simple techniques such l) as filtering or decanting? A) homogeneous mixture B) solutions 0 heterogeneous mixture D) elements E) compounds 2) An clement cannot 2) A) be part of a heterogeneous mixture Ji,) be a pure substance is corrccl for ___ _ 19) A) elements B) homogeneous mixtures Ohcterogeneous mixtures D) compounds 20) Which of the fo llowing is an example of a lieterogeneous mixture? @ oil and vinegar B) 70%…

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    The use of animal carcasses in make up Makeup is now trending more than ever, “currently there are a lot of different make up brands and products that ranges from high end to drug store”. (Oddee.net) Most make up comes with a list of ingredients on the wrapper or container, but do we really know what is in our make up? This document seeks to highlight the fact that major ingredients in some of the makeup products we use are indeed animal carcasses. This document serves to further…

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    Hydroboration/Oxidation of an Alkene Introduction: An alcohol can be added across the double bond of an alkene via hydration, which is the addition of a proton and alcohol group to the double bond. This reaction can yield either a Markovnikov alcohol or an Anti-Markovnikov alcohol. If the reaction is carried out in acidic conditions, the reaction yields a Markovnikov alcohol. The mechanism includes the formation of a carbocation intermediate, which has a lower activation energy when it is…

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    Scheme 11: Synthesis of 3h & 3i from 2a-i. Compounds: 3h : 7-Hydroxy-3-(4-methoxybenzyl)chromanone(Dihydrobonducelin) R1=OH, R2=R3=H,R4=OCH3 3i : 7-Hydroxy-3-(2,4-dimethoxybenzyl)chromanone (2’-Methoxydihydrobonducellin) R1=OH,R3=H,R2=R4=OCH3 Antioxidant activity of above synthesized derivatives were studied, on that basis 3-benzylchromones with phenolic hydroxyl group (2h & 2i) showed highest activity than com-pound with methoxyl group (2e & 2g) because double bond between C2-C3 done major…

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    New ultraviolet (UV) curable prepolymer, 2–hydroxy–3–[p–(1–{2–hydroxy–3–(isopro– phenylcarbonyloxypropoxy) phenyl} methylcyclohexyl) phenoxy] propyl acrylate (BISCHDA) was synthesized by the reaction of p–[1–(p–hydroxyphenyl) methylcyclohexyl] phenol with methylcyclohexanone, epoxidation with epichlorohydrin followed by addition reaction with acrylic acid. All synthesized compounds were characterized by 1H-NMR, 13C-NMR and FT-IR spectroscopy. Several UV-curable formulated solutions were prepared…

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    CHAPTER 4 RESULT AND DISCUSSION 4.1 Preparation of Bis-Thiourea Derivatives The mixture of heptanoyl chloride and ammonium thiocynate with 1,4-phenylene diamine appeared as homogeneous solution. White precipitate was formed immediately when the solution was filtered into the beaker containing ice cubes. Then, the precipitate was filtered again and rinsed by ethanol before being dried in the desiccator. The physical data of the synthesized bis-thiourea derivatives are shown in Table 4.1.…

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    Boiling Point Lab Report

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    This experiment examined the boiling process and the effect of added ingredients. Purpose of this experiment is to understand boiling process as well as the factors that affect this property. The objective of this experiment is to investigate the appearance and temperature of range of water that is lukewarm, scalding, simmering and boiling point. On top of that, we also need to determine the factors that boiling temperature of water alone and with various ingredients added. In this experiment,…

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