Alex Khan Section-7 9-25-10 What happens when you mix Coke and Mentos? Introduction: Who would have ever guessed that dropping mentos chewy mints into a bottle of soda would produce viral reaction? My group and I describes the reaction as "this generation's reaction to vinegar and baking soda." The reaction, a giant eruption of soda, is as mysterious as it is sensational. Although the phenomenon of dropping candy and mints into soda to release the carbonation has been around for years, we still decided to give it a shot in our science experiment.
Cool the beaker in ice water for 10 min, with stirring, and collect the solid by vacuum filtration on a small Hirsch funnel. Rinse with three small portions of water, by breaking the vacuum, adding just enough water to cover the solid, and reapplying the vacuum as before. Filtration of the fine crystals is slow. Using too much rinse water will slow the process considerably. Allow the solid to dry at least overnight, weigh it, take a MP, and calculate the % yield.
Eating ¼-cup of red-skimmed peanuts w/your meal provides the same amount of antioxidants. Rose hip powder blocks fat buildup – enjoying 1 T. of this sweet, fruity ‘n slightly tart powder (mix it into smoothies, yogurt or other food) helps block the fat storage that triggers high blood sugar ‘n insulin resistance. Rose hip powder inhibits fat formation in the liver. TIPS: if u prefer, dissolve the powder in a cup of boiling water ‘n drink it as a tea. Fish protects your heart – people who eat at least (3) three fish meals weekly have more heart-healthy HDL cholesterol levels in their blood than less frequent fish eaters.
The breath test relies on the ability of H. pylori to break down the naturally occurring chemical, urea, into carbon dioxide which is absorbed from the stomach and eliminated from the body in the breath. Ten to 20 minutes after swallowing a capsule containing a minute amount of radioactive urea, a breath sample is collected and analyzed for radioactive carbon dioxide. The presence of radioactive carbon dioxide in the breath (a positive test) means that there is active infection. The test becomes negative (there is no radioactive carbon dioxide in the breath) shortly after eradication of the bacterium from the stomach with antibiotics. Since some individuals are concerned about even minute amounts of radioactivity the breath test has been modified so that it also may be performed with urea that is not
| | | Substitutions | To avoid soy, select chips without soy lecithin. Enjoy Life Foods makes chocolate chips that are free of soy lecithin. Use milk, soy, peanut, tree nut, corn free ingredients as needed.. | | This recipe is free of: | Milk | Peanut | Egg | Soy | Tree nut | Corn | Gluten | Wheat | Fish | Shellfish | Sesame | | Other | | Allergy-Free Dessert Recipe:Caramel Apple
Question: What number of Mentos need to be dropped into a bottle of Diet Coke in order to get the maximum amount of soda displaced? Hypothesis: We believed that because of the relatively small size of the bottle, the greatest amount of soda displaced would be achieved when 5-6 Mentos were dropped into it. We chose this amount because after watching numerous videos, this looked to be the most popular amount. Research: To figure out why the two products reacted in a geyser-like way, we researched (both by text and online), and found good explanations from The Encyclopedia of Earth and Physical Science, The McGraw-Hill Encyclopedia of Science and Technology, and Science and Technology Illustrated. We related these explanations to our experiment, figuring that if you use too few mentos, there would only be a minimal amount of "fizzing," displacing a small amount of soda.
Isolation of Caffeine Introduction Caffeine is a stimulant found in the cacao plant that is used, today to increase alertness when taken in moderate doses. In this lab, we extracted caffeine from 2 NoDoz tablets, which contains 45% caffeine. We accomplished this task by performing a hot gravity filtration to separate the insoluble binder from the caffeine, a liquid extraction to separate the organic caffeine-containing layer from the aqueous layer, a gravity filtration to filter off the hydrated salts, a steam bath evaporation to evaporate out the organic solvent, and a recrystallization to obtain dry caffeine crystals. The ultimate goal of this lab was to acquire the same amount of caffeine as listed on the NoDoz tablets. Materials and Methods Materials The compounds used in this lab are listed in the table below: Procedure We boiled 2 NoDoz tablets in grinded form with 60 mL of water in a 100 mL beaker and allowed it to cool to room temperature after it had been sitting on the hot plate for 5-10 minutes.
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