Exercise 5 Comparing the Reaction Rates of Alkanes and Alkenes Group # 4 Members: Pangan‚ Sam Margarette Perales‚ Angelica Ibay‚ Sophia Irigan‚ Sharien May Sorensen‚ John Antonio Ocan‚ Emmanuel Submitted to: Ms. Ginalyn Cuenca Mr. Neil Abreo Date: December 6‚ 2012 Introduction Alkanes are hydrocarbons with only single bonds between the atoms. Saturated hydrocarbon is the other term for it. They are used as fuels because they are non-reactive and also do not conduct electricity
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Candy chromatography is a method of analysis of separating and comparing of dyes used in candies and food coloring. It is also a proven method to analyze candy and its complex mixture‚ without having to taste it. These complex mixtures can be separated back into pure substances. To find out the ingredients of a favorite candy‚ chromatography would help to define every ingredient found in the candy sample. The word chromatography is derived from the two Greek words‚ "chroma" meaning color
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to the carbon chain than alkanes. Are alkenes with double bonds. Are alkynes with triple bonds. 1 Structure of Alkenes Alkenes (and alkynes) are unsaturated hydrocarbons Alkenes have one or more double bonds The two bonds in a double bond are different: - one bond is a sigma () bond; these are cylindrical in shape and are very strong - the other is a pi (π) bond; these involve sideways overlap of p-orbitals and are weaker than bonds Alkenes are flat and have a trigonal planar shape
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Introduction Chromatography is a technique used to separate a mixture into its individual components. In this experiment‚ chromatography is done by using a thin layer chromatography (TLC) plate and filter paper. The word ‘chromatography’ itself means the separation of colours. However‚ nowadays‚ both coloured and colourless compound are used in chromatography by various methods. In chromatography‚ the separation process of mixture is mainly based upon the polarity and molecular weight of sample
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Materials and methods Preparation of saponins from sea cucumber: Saponins were isolated from the sea cucumber‚ Holothuria thomasi (purchased from Hurghada‚ Red sea‚ Egypt and identified by Zoology department‚ Faculty of science‚ Tanta‚ Egypt)‚ according to the method described by Hu et al.‚ (2010) with some modification. Air-dried body walls (750 g) of sea cucumber were grinded into powder and extracted with eight liter with refluxing ethanol. The combined extracts were evaporated with rotary evaporator
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OBJECTIVES: The objective of this experiment was to extract plant leaf pigments and determining them by using the Rf values obtained from the paper chromatography technique. The hypothesis of the experiment was that all of the five listed pigments would be present in the extracted plant leaf according to the Rf values. PROCEDURE/APPARATUS: The equipments used were a 18 x 150 mm test tube with stopper‚ graduated cylinders‚ Erlenmeyer flask‚ mortar and pestle‚ metric ruler‚ tall jar‚ acetone‚ tiny
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September 2015 Block B Calculations: There are no calculations. Analysis/ Critical Thinking Questions: Compare your data for the pure substances with the data for each of the two solid mixtures. Which of the pure substances shows behavior that is similar to what you saw with the the two-solid mixtures (Mixture 1 and Mixture 2)? If you cannot positively identify your mixture‚ discuss the possibilities for the mixture. The starch and mixture 2 are both similar because they both did not penetrate when
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They should all try different chemicals from the other people. They see should all look at the chemical and physical appearance. My claim is the the mystery mixture was Citric acid‚ road salt‚ and baking soda. The reason I thought it was this mixture because of the physical and chemical appearance. I agree with baking soda road salt and citric acid.The baking soda gives the mixture a powdery texture.The road salt are the little pebbles in the mixture. The citric acid is what make the road salt
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presence in an organic molecule. Common functional groups found in organic molecules are listed below: * Alkene * Primary alcohol * Tertiary alcohol * Aldehyde * Ketone * Carboxylic acid * Ester * Halogen alkane * Phenol Alkene In organic chemistry‚ an alkene is an unsaturated chemical compound. This means it contains a carbon – carbon bond. All alkenes are hydrocarbons‚ (a molecule made of carbon and hydrogen atoms)‚ and can only form one double bond which must
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Chromatography serves mainly as a tool for the examination and separation of mixtures of chemical substances. Chromatography is using a flow of solvent or gas to cause the components of a mixture to migrate differently from a narrow starting point in a specific medium‚ in the case of this experiment‚ filter paper. It is used for the purification and isolation of various substances. There are two phases in chromatography: 1. Stationary Phase – a solid that does not move. In this experiment was the
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