Objective: 1) To test the presence of reducing sugars which is glucose in the Benedict’s test. 2) To test the presence of non-reducing sugars which is sucrose by using Hydrolysis then Benedict’s test. 3) To test the presence of the starch by using iodine test. 4) To test the presence of lipids in corn oils when using the Sudan Ш and Emulsion tests. 5) To test the presence of proteins in an egg albumen in the Biuret’s test. 6) To test the presence of Vitamin C and ascorbic acid in the DCPIP
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Also known as: ethanoic acid‚ Glacial acetic acid‚ Ethylic acid‚ Vinegar acid‚ Acetic acid‚ glacial‚ Methanecarboxylic acid‚ Acetasol‚ Essigsaeure Molecular Formula: C2H4O2 Molecular Weight: 60.05196 Acetic acid is a weak acid which is probably most famous for being the primary acid in vinegar. In fact‚ acetic acid has a wide range of uses beyond sprinkling on salads‚ and it is produced in large volumes all over the world. People have been working with this acid in a number of contexts for
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Buffers‚ and pH‚ and Diffusion oh my The pH of a solution is the measure of the concentration of charged Hydrogen ions in that given solution. A solution with a pH lower than seven is considered to be acidic. A solution with a higher pH is a base. It is very important for organisms to maintain a stable pH. Biological molecules such as proteins function only at a certain pH level and any changes in pH can result in them not functioning properly. To maintain these constant pH levels‚ buffer solutions
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As a young woman of color the main focus of the newly elect president is that women of color of color the main focus for the newly elect president should be encouraging young woman further their education. The goal is to have more access to as many resources that are able in College /University’s to have a role model that leads by example. I encourage woman to go to college to get their Master‚ Bachelors‚ and Associates degree in the field they are going to peruse after graduating from College/University
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can reach a new pH level by interacting with soil. If water has a pH that is too high or too low‚ it can be life threatening to aquatic species and can corrode metal structures. After finding this out‚ I decided to test if water could reach an extreme pH just by interacting with soil around it. The question for this experiment therefore became the following. Will interaction with soil change the pH of water? I hypothesized that if water interacts with soil for three days‚ then the pH of the water will
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is specific to odor recognition and perception. The discovery of this multigene family encoding odor receptors leads to the idea that the human olfactory system utilizes a far greater number of receptors than the visual system. Color vision‚ for example‚ accomplishes color discrimination using only three different photoreceptors (Rushton‚ 1955). The increased number of olfactory receptors utilized by the human sense of smell indicates that it is a novel sense and could be a very powerful retrieval
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or any other sprouted bean or seed. As some of my seedlings have come up bunched together in what would be a good sprouting stage‚ I pull a few out and decide to give them a taste test. They have a warming‚ peppery taste with a subtle flavour of (surprise‚ surprise) radish! I think they would be great for perking up cheese or egg sandwiches‚ or as a topping for salads and soups. Radish Nutrients So what nutrients does this humble salad veg have . . . Radishes are a very good source of fibre‚ vitamin
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1 Molecular-Orbital Theory Introduction Orbitals in molecules are not necessarily localized on atoms or between atoms as suggested in the valence bond theory. Molecular orbitals can also be formed the LCAO where more than two atomic orbitals are used. (Technically‚ we can use all of the atomic orbitals in the LCAO.) Linear combinations of orbitals result in the interference of waves. Both constructive and destructive interference may result. Within a diatomic molecule‚ N atomic orbitals
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pestle. Add 300 L of Methanol 1%HCl and continue to grind the plant tissue. Allow extraction to occur overnight in a dark refrigerator. 3) Add 200 L Milli-Q H20 to each tube. Next‚ go to the fume hood and add 500 L of chloroform to each tube. Spin the tubes in a centrifuge set at the highest rpm for 2-5 minutes. 4) Return to the fume hood and extract the supernatant/aqueous (top) solution from the tube using a pipetmann. To do this start by setting the pipetmann to 400 L. Slightly tilt
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Ph Lab Report Bryon Kim 123013 B(2) Biology Background information/Research PH paper (litmus paper) determines how acidic or how basic a substance is. The paper changes color accordingly to color code on the pH scale. The pH scale starts from 0 to 14. The lower the number the more acidic it is. Zero is the most acidic‚ and 14 is the most basic while 7 is the neutral number for example water. Examples of an acid is lemon juice or multi purpose cleaner. Examples of a basic substance is shampoo or liquid soap
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