APPARATUS a) Dye reservoir. b) Stilling tank. c) Observation tube. d) Stopwatch e) Graduated cylinder THEORY Reynolds number is used to distinguish between laminar‚ transitional and turbulent flows. Re = Reynolds number V = Fluid velocity (m/s) d = Pipe diameter (0.012m) v = Kinematic viscosity (0.893 x 10-6m2/s) Laminar Flow‚ Re < 2000 Laminar flow denotes a steady condition where all stream lines follow parallel paths. Under this condition‚ the dye will remain
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Ever wanted your hair to be a crazy unnatural color? Dye it! Hairstyles aren’t permanent. Later if you decide you want your old hair back just make a trip to a salon they will fix you up with some cute normal hair. Anyone‚ no matter their age‚ can use the confidence boost that comes with having hair that deviates from the norm. Have some fun and express yourself! You can do almost the whole process at home for relatively cheap. Just be sure to check in with your employer first since I’d be willing
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Tie-Dye Grignard Synthesis Abstract: 4-Bromo-N‚N-dimethylaniline underwent a Grignard reaction with diethyl carbonate to produce a type of the tie-dye chemical triarylmethane. This specific triarylmethane produces a vivid crystal violet color when dyed. The experiment was first heated under reflux to produce the necessary Grignard reagent as a grey liquid. It was then reacted with diethyl carbonate and hydrochloric acid to produce crystal violet. The resulting chemical was very absorbent to
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When the actual FD&C dyes in the green Kool-Aid were revealed‚ it was discovered that the initial assumption that Yellow 5 and Blue 1 are in the Kool-Aid was correct. However‚ solely based upon the Rf values‚ the dyes in the green Kool-Aid are Red 40 and Yellow 6 as those are closet Rf value to the numeric data collected and calculated from the Kool-Aid chromatogram. However‚ the chromatography paper in both trials display that the dyes in Kool-Aid are a form of yellow and a form of blue because
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component dyes using paper chromatography. Materials: Chromatography paper‚ Food coloring‚ Ruler‚ Pencil‚ Solvent solution‚ Test tubes‚ Test tube rack. Safety precaution: wear aprons‚ to make sure that you don’t get any of the alcohol on your clothes‚ and if you break a test tube you don’t get glass on you. Procedure: See-attached handout. Results: See chromatography with Audrey’s lab report. Rf values for approved FD & C dyes Dye Rf Value
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laboratory to determine their absorbance and prepare a Beer’s law plot. Molarity of these samples was also calculated to determine concentration and percent error rate. Students also analyzed the concentration of blue dye #1 to determine the concentration of blue dye #1 in a commercial blue dye drink. Procedure: To drop solutions into the test tubes and then determine the Beer’s Law relationship of each and the calculations of each of part of the experiment. Convert %T to absorbance and prepare a Beer’s
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Science Fair Research Paper Chemical mixture separation of grape soda. -How can I separate color dyes in grape soda using space sand? By: Jiaqi Li Room: 8B/327 There are many different types of soda with different color. Is soda really made of natural color from fruit? Is that safe to drink? Will that kill you? So there is science behind this. The colors of the soda is made of pigments. The fruit color will make the color of the soda brighter. Column Chromatography is a new technical
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Water Food Dye To being the experiment‚ you need at least 20 cups halfway filled with water and grouped in five groups of four. Place a drop of blue dye in the first cup of each group‚ red dye in the second cup in each group‚ and purple dye by mixing red and blue dye together in the third cup in each group. Leave the fourth cup of each group clear with just water. Label each cup of red dye blood type A‚ each cup of blue dye blood type B‚ each cup of purple dye blood type AB‚ and
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Alejandra Carrero Prof. Maritza Farrell FASH 206 - B May 3‚ y World Water Pollution Water pollution is one of the worst environmental impacts that our planet continues to suffers today. Every day people throw garbage into rivers‚ oceans‚ and lakes. Also‚ tons of human waste is dumped at the rivers and the sea from many waste factories‚ therefore‚ causing death of many animals in the environment. Polluted water can also cause outbreaks of hepatitis‚ cholera and dysentery in humans. Water pollution
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In Chapter 3‚ Lipton explains his ideas the membrane‚ the “magical membrane” as he calls it‚ and how it controls the life of cells. He described membranes as being an intelligible life‚ comparing it to a sandwich made up of bread‚ a large hunk of butter‚ and both seedless and seeded olives‚ something you don’t find on the Subway menu. He shares about the proteins of the membranes‚ how they connect to the “mem-brain”‚ how the membranes react to their environment‚ and how people receiving diseases
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