1.TITLE: To prepare isopentyl acetate (isoamyl acetate) 2. AIM: To make an ester referred to as banana oil from acetic acid and isopentyl alcohol 3.THEORY: This ester is often referred to as banana oil‚ since it has the familiar odor of this fruit O O CH3 H+ CH3 CH3C OH +
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the same time its nonpolar‚ being that Silica gel in TLC 2 was polar and the solvent ethyl acetate-hexane is non-polar it moved relatively with the solvent. The stationary phase in TLC 3‚ alumina is non polar and the solvent ethyl acetate is polar so from the ideal that polar does not attract non-polar benzophenone stick stronger to alumina non-polar rather than moving up with polar solvent ethyl acetate as it did in tlc2. 6. Ethyl acetate is polar and Ethyl acetate- hexane is nonpolar‚ use of polarity
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relaxing comfort but to others it can be an emotional rollercoaster just to view one certain show. Reality TV can affect the viewers and the contestants especially emotionally‚ selfishly‚ and physically. One noticeable similarity that develops from these three articles is that viewers and contestants are affected emotionally. For example‚ Kathy Kennedy believes that reality TV is too negative and states‚ “I don’t even want to watch ‘ER’ anymore. Anything that’s sad or dramatic…it seems too much
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imprisoned by the language that we ourselves created. Those words in the biblical texts are from a perspective of a different person but we believe in his/her words‚ borrow the idea and we make our own beliefs which is still inspired by someone’s perspective. Those beliefs define the world around us. Thus‚ through language we create our own limited world and imprison ourselves. Likewise‚ in the excerpt Cosmic Prison from the book The Invisible Prison by Loren Eiseley‚ the author argues‚ that human perspective
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the solution was very watery - Set up a burner inside the hood to heat up the solution - Used clamps to hold solution over heated water until the solution was completely dissolved - As the solution was in the heated water bath the color changed from white to clear when the water temperature was at 75 degrees C - Set up Buchner funnel with side arm flask for filtration - Pulled the solution out of the heat bath after about 10 minutes‚ the temperature reached 82degrees C - Placed solution on
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In the first reaction‚ magnesium was burned to produce magnesium oxide. The reaction produced a bright light‚ which is evidence of a chemical change. The second reaction occurred as a result of solid magnesium reacting with hydrochloric acid. The reaction produced heat and bubbles‚ both indications of a chemical change. A wood splint was used to determine that the gas produced was hydrogen gas‚ hence the other product is magnesium dichloride. In the third reaction‚ ammonium carbonate was heated to
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Video 1: how to be mkt orientated ch 1 3 The Success of a firm is not only determined by the mkt plan but also by growth and profits and mainly depends by two basic pillars: the 1st one is the business core competences i.e the technical skills‚ indusrty knowledge and manifacturing experience which allow to develop excellent products or services. The other pillar is the drive and commitment to organization. Successful firms are driven by leaders which can inspire the firm with the vision of being
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Hyperactive Disorder (ADHD). Currently it is patented by the pharmaceutical giant Shire Inc. US‚ and the drug is in phase 3 trials for approval to treat binge eating. (Pipeline‚ n.d.) There have been rumors the drug is in trials to treat a range of diseases from schizophrenia‚ narcolepsy‚ and major depressive disorder. Vyvanse is different than past ADHD medications because it is a pro-drug. “Pro-drugs work as precursors to actual drugs. Through refining and secondary processes such as reactions with enzymes
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Literature can be an eye-opening experience. Reading some great works of World Literature helps us understand things even ourselves. Because by reading we are exposing ourselves to new ideas‚ we begin to have better judgment on things and we benefit from other’s point of view. We understand ourselves by putting ourselves in the characters’ shoes or seeing our own personalities in literature. It serves as a mirror revealing naked truth about ourselves we often understated and neglected.
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EXTRACTION Organic Chemistry Laboratory This experiment was conducted in order to compare single and multiple extraction of caffeine from dried tea leaves and to calculate the percentage yield of caffeine for both extraction procedures. The group was assigned to do the multiple extraction. Before the extraction proper‚ the water bath containing the anhydrous sodium carbonate and distilled water was heated. As the sodium carbonate dissolves‚ tea leaves were added in the mixture and allowed to
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