many ways including perfumes and artificial flavorings‚ and can be used alone or in a cocktail of different esters working together. Isopentyl acetate is the ester being synthesized in this lab. Isopentyl acetate has a strong banana odor when undiluted‚ and a pear odor when diluted. It is also used as an artificial flavor of butterscotch‚ honey‚ coffee‚ banana‚ and pear. Reaction Isopentyl acetate synthesis reaction: Percent Composition Percent yield = Percent area = 100% because there
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& Chemical Properties Purpose To examine the physical and chemical properties of multiple natural chemical substances‚ and to determine which changes are chemical and which are physical. Data Solubility or Reaction | SubstanceName | Color | Odor | Effectof Heat | ColdH2O | HotH2O | LitmusTest | DiluteHCl | DiluteNaOH | Mg | Silver | Odorless | Slight change of color and expansion | No Reaction | Substance became buoyant‚ gas produced | No Reaction | Gas and heat produced‚ substance dissolved
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Preparation of an Ester Acetylsalicylic Acid (Aspirin) OBJECTIVE: To become familiar with the techniques and principle of esterification. DISCUSSION: Aspirin is a drug widely used as an antipyretic agent (to reduce fever)‚ as an analgesic agent (to reduce pain)‚ and/or as an anti-inflammatory agent (to reduce redness‚ heat or swelling in tissues). Chemically‚ aspirin is an ester. Esters are the products of reaction of acids with alcohols‚ as shown in the following equation using
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Overview Chemical Warfare is using the chemical properties of a substance to your advantage during war. This has been going on for centuries. Even the most basic forms of weapons were used. People have been putting poison on the end of their spears and arrows since they have been around. Over the years‚ it has also developed into much more advanced chemistry. In this article‚ I am going to focus on the more advanced‚ modern uses of chemical warfare in World War I and World War II. World War
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The Acceptability of Jackfruit (Artocarpus Heterophyllus) Seeds as Nutritive Organic Chips An Investigatory Project Entry To the Intel Philippines Division Paper Evaluation Hana Angelica Ramos Carla Anghella Gallardo Archival Asistin Researchers Teresita P. Avila Project Adviser Ilocos Sur National High School Vigan City S.Y.:2012-2013 TABLE OF CONTENTS Abstract …………………………………………………………………………………………………………………………….…………….…………..1 Chapter I Introduction……………………………………………………………………………………………………………………………….……………
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and thirty minutes of drying at a temperature of 100oC before pulverization. One and one-eighth of a gram of sample was weighed and packed in a teabag. A taste test with twenty panelists was held to evaluate the prepared samples in terms of color‚ odor‚ taste and general acceptability using the smiley scale. Statistical tests were done using the Freidman’s test. Statistical tests showed there was a significant difference in taste and color between commercial and that of blackberry tea. But there
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give you more confidence. A therapist overall look isn’t just for them to look the part but it also for the protection of health‚ safety and hygiene. It’s advisable to have a few uniforms so they can be washed regularly to avoid the build up of body odors also so it doesn’t get too worn. Your uniform should be a good length so that you’re comfortable to move around (it’s suggested to get a size bigger)‚ and should always be cleans and pressed. Your shoes should
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There are many things that are unhealthy when it comes to the care of our feet. For instance stinky feet is a problem that many people have‚however odor of the feet isn’t also caused by being unclean it’s actually caused by a bacteria that thrives in the uria of your foot sweat. Bacteria releases toxins and that causes odor. There is a solution for foot odor (Y! Answers)put a sage tea into a foot bath or the tub and soak your feet for 15 min. The tea bags act as an astringent to dry the skin and prevent
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The Ashley House Restaurant on Riverdale Road in West Springfield‚ MA. is a mix and match of old and new architectural design having had various owners from 1829 through the 1900s. When Charles Ashley constructed it in 1829 it was done in the Greek Revival style. Ashley family members lived there until the 1920s. Afterwards the house became a tavern and pub and a restaurant twice. Each time its form changing. TheAshley House has 2 stories the first having the dining and drinking areas and the second
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PChapter I Introduction Background of the Study In today’s world the importance of utilizing is becoming greater of a concern both for general public and also to the economy. In today’s world the importance of utilizing is becoming greater of a concern both for general public healthy balance. The earth’s natural resources are being consumed at a rate that reinforces the idea that we are living for today and the future generations will be paying for the consequences. However many people and just
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