of the plant as spices to give flavor to their food and also treat diseases. It rapidly reached China and other Asian countries by the help of trade. Its chief components are Carvacrol‚ Thymol‚ Cymene‚ Caryophyllene‚ Pinene‚ Bisabolene‚ Linalool‚ Borneol‚ Geranyl Acetate‚ Linalyl Acetate and Terpinene. The application of oregano had grown and is still expanding worldwide because of the advancement in science and technology that maximized and specified the capabilities of this plant. (History of Oregano
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Quiz #1 Attempt 1 Written: Jul 7‚ 2012 9:48 AM - Jul 7‚ 2012 9:50 AM Submission View Your quiz has been submitted successfully. Question 1 1 / 1 point At what time do you have to complete your online prelab assignment to be allowed to participate in the lab? Question options: A week before the lab Day before the lab at 10 pm The morning of lab day at 8 am One hour before the lab Question 2 1 / 1 point Which materials/chemicals belong in the desiccator? Question options: Drying
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PHILIPPINE MEDICINAL PLANTS Here are the list of Medicinal Plants that can be found here in the Philippines : AKAPULKO Scientific name : Casia Alata Other name : Ringworm Bush‚ Kasitas (Bik.‚ Bis.) Treats skin diseases like Tinea infections‚ringworms‚eczema‚scabies and insect bites. USE AND PREPARATION: Pound enough fresh leaves; express (squeeze out) the juice and apply on the affected skin morning and evening. Improvement should be noticed after 2 - 3 weeks of treatment. You
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Exp.11) Identification of unknown ketones. Introduction: Given five samples of a known ketone derivative‚ the purpose of this experiment is to identify which unknown ketone derivative corresponds to the five known samples. In other words‚ using specific methods of compound detection‚ it is possible to match an unknown compound with a known compound because similar compounds will display similar characteristics. In this experiment‚ identification of the unknown ketone is accomplished through thin
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(a) Determine the empirical formula of the compound. [pic] [pic] [pic] [pic] [pic] [pic] (C3.5H6O1)2 = C7H12O2 (b) A solution of 1.570 g of the compound in 16.08 g of camphor is observed to freeze at a temperature 15.2° C below the normal freezing point of pure camphor.
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Notes Aldehydes and Ketones The major similarity between an aldehyde and a ketone is the carbonyl group. A carbonyl group is a carbon atom doubly bonded to an oxygen atom. [pic] Both molecules have a carbonyl group‚ the difference the number of carbons bonded to the carbonyl carbon. An aldehyde will have none or one and a ketone will have two carbons. All aldehydes‚ except formaldehyde‚ will have a hydrogen atom on one side of the carbonyl carbon and at least on carbon on the other side
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experiment was to perform a reduction reaction on the ketone group of camphor to the OH group on isoborneol. In order to successfully synthesis the reactant to the product‚ NaBH4 was used as the main reagent to reduce the carbonyl double bond. One believes the formation of isoborneol was successfully due to the product’s percent yield‚ IR‚ and melting point. During the lab‚ .077 grams of isoborneol was yielded from the camphor reduction. In result‚ .077 g compared to an theoretical yield of .102
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strong odour in one of any of these soilds would simply mean that the molecules leave the surface easily. 10. From your answer to question 1‚ which of the two types of solids seem to have the stronger forces of attraction? Explain your answer. Camphor has a very strong odor which makes it easy for the particles in the soild leave it’s surface. The particle attraction to the soild is not very strong which means that the particles would leave the soild which then triggers a strong smell. 11. From
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Keeping it Liquid Introduction: Phase changes within our world play a key role in how substances can be manipulated‚ and formed. A phase change is‚ “a change from one state (solid or liquid or gas) to another without a change in chemical composition” (Collins Italian Dictionary‚ 2016). Moreover‚ in this experiment‚ the use of tert-butanol was needed to perform phase changes. Tert-butanol is colorless oily with sharp odors‚ mixes with water‚ and has a freezing point of 78 degrees Farenheit (PubChem
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solids – ionic and molecular. The samples used are sodium chloride (ionic) and camphor (molecular). The physical properties studied are odour‚ hardness‚ melting point‚ solubility in water and solubility in 2-propanol. It is observed that some of the physical properties of sodium chloride are no odours‚ hard‚ a high melting point‚ soluble in water and insoluble in 2-propanol; some of the physical properties of camphor are a strong odour‚ soft‚ a low melting point‚ insoluble in water and soluble in
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