minute. At altitudes greater than 6‚562 feet you should boil water for three minutes. 2. Chemical Treatment * If boiling water is not an option‚ you can chemically treat your water with halogens such as iodine and chlorine. There are many products on the market that include iodine or chlorine in liquid and tablet forms specifically for water purification. The effectiveness of these products depend on the temperature‚ pH level and clarity of the water. Be sure to check the expiration dates
Premium Water purification Boiling Water
BAB I PENDAHULUAN 1.1. Latar Belakang Kraniotomi merupakan tindakan pembukaan tengkorak melalui pembedahan untuk meningkatkan akses pada struktur intrakranial (Brunner & Suddarth‚ 2010). Tindakan operasi kraniotomi dilakukan untuk menghentikan perdarahan‚ memperbaiki kerusakan lapisan jaringan yang melindungi otak dan patah tulang tengkorak akibat trauma‚ mengevakuasi masa yang ada didalam otak‚ mengeluarkan cairan serebrospinal yang berlebihan dan menghilangkan sumbatan darah daerah otak. Operasi
Premium
Reactants Predictions Before Combining Observations After Combinin g Starch + I2 No reaction‚ starch will remain white Reaction; black deposits on the glass tube. Starch turns black Food coloring + NaOCl No reaction; will turn lighter Reaction; the solution that was dark blue turned into light blue Food coloring + CH3COOH No reaction; color will turn lighter No reaction; when both combined‚ the color (dark blue) remained the same Food coloring + NaOCl + CH3COOH No reaction; solution will remain
Premium Chemistry Chemical reaction Sodium
experiment conducted was to observe if a higher concentration or lower concentration gradient would affect the diffusion rate of the iodine moving through the starch concentration. This was shown to be an accurate experiment as with a higher concentration gradient the diffusion that did occur happened a lot faster and diffused more efficiently compared to no iodine solution and just water. This is due to the molecular collisions speeding up the experiment in the time period given because of the Soule
Premium Chemistry Concentration Solution
halogen element Any of the six nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic table. The halogen elements are fluorine (F)‚ chlorine (Cl)‚ bromine (Br)‚ iodine (I)‚ astatine (At)‚ and element 117 (temporarily named ununseptium [Uus]). They were given the name halogen‚ from the Greek roots hal- (“salt”) and -gen (“to produce”)‚ because they all produce sodium salts of similar properties‚ of which sodium chloride—table salt‚ or halite—is best known. Because of their great
Premium Chlorine Chemical element
Lab Report: Chemistry DCP + CE Jovi Arya 28 August 2012 Aim The aim of this lab is to determine the order of the reaction between Propanone and aqueous Iodine with respect to Iodine. Apparatus and Reagents Apparatus I. Eye Protection (1) II. Spectrophotometer III. Cuvettes for spectrophotometer IV. Burette (4) V. Burette Stand (4) VI. Stopwatch VII. Conical flask (2) Reagents I. 0.020M I2 (aq.) II. 2.0M CH3COCH3 (aq.) III. 2.0M HCl (aq.) Raw
Premium Measurement Error Chemistry
presence or absence of starch in the solutions using iodine (I2). Iodine forms a blue to black complex with starch‚ but does not react with glucose. If iodine is added to a glucose solution‚ the only color seen is the red or yellow color of the iodine. Therefore‚ the faster the blue color of starch is lost‚ the faster the enzyme amylase is working. If the amylase is inactivated‚ it can no longer hydrolyze starch‚ so the blue color of the starch-iodine complex will persist. You will also test for the
Free Enzyme Starch
Epidermal Cells Requirements: Iodine solution HARMFUL Onion Distilled Water Apparatus: Microscope Microscope slides & cover slips Tile Knife Tweezers Pasteur Pipettes Assignment: I was given the onion once it had been chopped up on the tile‚ ready for me to peel back the skin I required using the tweezers. I then placed piece of onionskin onto the microscope slide‚ making sure there were no folds or creases‚ and put a drop of iodine onto the slide as well‚ to view through
Premium Cell Microscope Cell nucleus
Estimation of the Activation Energy for the Iodination of Acetone Through the Effect of Temperature on the Rate Constant Joel Costa‚ Alex Fuentes‚ Michael Chea‚ Rex Nwerem Dr. Morgan Ferguson July 9‚ 2013 ABSTRACT | It is often important to determine the rate at which a chemical reaction takes place‚ i.e.‚ how fast it yields the desired products. Temperature is one of the factors that influence the rate of reactions and it does so by providing energy to reactant particles so that a larger
Premium Chemical reaction Reaction rate Chemical kinetics
experiment is to test the existence of carbohydrates in starch suspension and potato cell. If carbohydrate is present in starch suspension‚ the solution will turn into dark blue when iodine solution is added. If carbohydrate is present in potato cell‚ starch granules can be seen clearly under microscope when iodine solution is added. The second experiment is to test the existence of lipids in margarine and olive oil. If a lipid is present in margarine‚ the solution suspended with alcohol will turn
Premium Starch Carbohydrate Chemistry