strong base (very high pH). From information learned in this course (lecture/lab) we can assume that both a very high and low pH will have adverse effect on the plasma membrane. SDS (Sodium dodecyl sulfate) is a detergent. From our back-round information we can learn that soaps and detergents tend to solubilize the lipids of the cell membrane causing cells to lyse. So overall we can assume that all three are going to cause the plasma cell membrane of the red cabbage to break down. Which one‚ HCl/NaOH/SDS
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Cleansing Action of Detergents (Using Capillary rise) Synopsis This project report explains about the surface tension and capillarity of liquid through a simple experiment of finding the capillarity of various detergents. Oil stains and grease on dirty clothes cannot be removed‚ using water alone‚ because water does not wet them. If detergents added ‚ surface tension is decreased‚ the area of contact is increased. Detergent molecules have
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share in soaps and detergents in the last few years due to intense competitive environment‚ it seems to have improved market shares across the two categories by 140-160 basis points each. HUL’s approximate market share in toilet soaps is 46% and about 36% in detergents. Analysts said the company will have better pricing power in the key business while volume growth in these categories too is estimated to be in double digits. After discounting prices on toilet soaps and detergents to grow volumes‚
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of milk fat? The second lab’s problem statement‚ using milk fat‚ food coloring‚ and dishwashing soap was: What happens when detergent is added to different milk fats and food coloring? The expectation is that the milk with higher fat content will have a more dramatic reaction. If the milk has a higher fat content‚ then the reaction of food coloring and dishwashing detergent will be more dramatic because there are more molecules to interact with each other. Since milk is made up of many parts
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macromolecules known as proteins (Horton‚ et al.‚ 1996). The amino acid content of a particular protein of interest can be determined and extracted through solubilization using detergents (Carpentier‚ et al.‚ 2005). Solubilization of proteins is made possible by detergents due to the amphipathic behavior of the latter. A detergent has a hydrophilic head and a hydrophobic tail.
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water‚ water with detergent and rubbing alcohol. Data from the three trials is listed below. The accuracy of the procedure is dependent on consistent drops. TABLES AND CALCULATIONS: Liquid Number of Drops to fill 10 ml Volume of a Single Drop Water 195 0.5128 ml Water with detergent 501 0.1996 ml Rubbing Alcohol 526 0.0190 ml Calculations: total volume / total drops = volume per drop Water: 10ml/195 drops = 0.5128 ml per drop Water w/ detergent: 10ml/501 drops
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of proteins. Membranes have different properties and a variety of functions‚ in large part determined by the specific proteins within the membrane. This experiment is designed to determine the stress that various factors‚ such as osmotic balance‚ detergents and pH‚ have on biological membranes. There are three parts in this experiment. The first part is the synthesis of an artificial membrane. In this experiment‚ the vegetable oil was added with albumin solution and the albumin bubble breaks‚ but didn’t
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5%) ml. Controlled: * Time (30 s). * Volume of Hydrogen Peroxide. * Constant volume of detergent. * Size of liver cubes. Materials: * 100cm3 measuring cylinder. * 5 or 10cm3 measuring cylinder. * 2 teat pipettes. * Forceps. * Stop watch. * Sharp knife or razor blade. * Solution of hydrogen peroxide (6%‚ 4%‚ 2%‚ 1%‚ and 0.5%). * 10cm3 detergent. * Fresh liver. * 100cm3 of distilled water. Procedure: 1. Cut 6 cubes of liver approximately
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Hypothesis: I hypothesise that food substances such as coke and vinegar will be acidic‚ whilst cleaning products such as detergent and diluted hydroxide acid will be basic. Independent variables: Household solutions Dependent variables: pH level Controlled variable: Universal indicator Materials: * Universal indicator * Spotting tile * pH chart * Detergent * Vinegar * Coke * Diluted Hydrochloric Acid * Sucrose * Sodium Bicarbonate * Sodium Hydroxide
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Solution(s) to the Problem of Waste Contamination in Water - Eutrophication By Patricia Lopes The degree of eutrophication in water bodies depends‚ mostly‚ on the concentration of nutrients usually phosphorus in the water‚. Calculations show that because of the increase of population growth and urbanization‚ the world input of phosphorus into the rivers will have reached 2.56 million tons per year by the end of the 20th century. Also‚ an additional 0.6 million tons‚ are added mainly due to agricultural
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