CHAPTER I Problem and its Background Introduction: This study uses Mangosteen (Garcinia mangostana) peeling. A peeling of Mangosteen is thick and contains extract that is the main component of this research. Compare to other fruit’s extract‚ Mangosteen peeling has the strongest because it’s extract sticks on hands when peeling this fruit. Varnish is a transparent‚ hard‚ protective finish or film primarily used in wood finishing but also for other materials. Varnish finishes are usually
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Thornton James Keel 7/20/13 Title: Titration for Acetic Acid in Vinegar Purpose: The objectives in this lab were to develop familiarity with the concepts and techniques of titration and to determine the concentration of an acetic acid solution in vinegar. Procedure: Data Tables: Data Table 1: Quantity of NaOH needed to Neutralize 5 mL of Acetic Acid Brand of Vinegar Used: heinz Label Notes: none | | Initial NaOH reading(Interpolate to 0.1 mL) | Final NaOH reading(Interpolate
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05.05 Mixtures and Solutions Background: Paper chromatography is one method for testing the purity of compounds and identifying substances. Paper chromatography is a useful technique because it is relatively quick and requires small quantities of material. Safety: Warnings: * Rubbing alcohol (or isopropyl alcohol) is flammable‚ so be sure to keep it away from high heat or heat sources. * Keep pigments and solutions away from your eyes‚ wash your hands carefully after coming in contact
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Mohamad Diab Reaction Of Alcohols Purpose: The following experiment will study the chemical reactions of a selection of alcohols to determine the effect of the position of the OH functional group in the molecule. Hypothesis: Suppose that the primary and secondary alcohols will react with HCL and KmnO4‚ and the tertiary alcohol wont react with either HCL nor KMnO4 due to the location of the OH. The carbon that is bonded to the OH in both primary and secondary still has one or two Hydrogen
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Alcohol will be banned when people will understand that alcohol is bad. The damage alcohol does to a person is indeed considerable. Like all drugs that have an effect on the brain‚ alcohol soon has one addicted. The side-effects of alcohol consumption are poor health‚ impaired judgment‚ violence‚ broken careers‚ broken families‚ lost opportunities‚ lost fortunes‚ incoherence and disorientation in society. I doubt that talking and preaching about the evil effects of alcohol will have a substantial
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Alcohol and Age of consumption Debate Being as young as we are alcohol can affects us in more ways than one. It can affect our behaviour‚ body and emotions‚ and we can see this in our generation of teenagers. So why is our alcohol consumption legalized to age 18? As well as the effect of alcohol on a teen’s body‚ it can affect a community in many ways‚ as they are the people dealing with the commotion of drunken teens. I strongly believe that the legal age for alcohol consumption should be
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Limescale‚ what is it? When water is heated limescale deposits can form‚ especially in machines such as fully automatic coffee makers‚ espresso machines and all hot water units. In this context you often hear about hard and soft water. The hardness of the water indicates the proportion of limescale. Your water supply company will provide more information about hardness of your water. If your groundwater flows through calcareous rock layers‚ eroded magnesium and calcium carbonate will cause limescale
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EXPERIMENT NO. 7 Evaluate the given drug (digitalis) by organoleptic and chemical tests. Write its chemical constituents and medicinal uses. DIGITALIS Common name: Foxglove Vernacular name: Berg-e-Lafah Botanical name: Digitalis lanata Family: Scrophulariaceae Part used: Dried leaves Distribution in Pakistan: Hazara‚ Azad Kashmir at an elevation of 2150
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! ! ! ! ! ! ! Determining the solubility of Sodium hydroxide ! ! ! ! ! ! ! ! ! ! ! ! Yunha Kim! Gyeonggi Suwon International School ! IB DP Chemistry SL! Research Question! How is the solubility of sodium hydroxide (NaOH) in water affected by temperature? ! ! Introduction ! Sodium hydroxide is categorised as metal halide salt‚ composed of sodium and chlorine.! The ions present in the solid crystals of potassium chloride dissolve and gain mobility in water
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Bacteria Lab Write-Up Jianna Liu P8 Purpose: The purpose of this lab is to find out which substance‚ alcohol‚ antibacterial soap‚ water‚ or hydrogen peroxide‚ is the best at preventing the growth of bacteria. Hypothesis: Antibacterial soap will be the best because soap is a substance that people use to wash their hands because it takes away the germs. Even the name‚ antibacterial soap‚ suggests that it fights off bacteria. Hydrogen peroxide is second because it is used
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