Aim: To compare the foaming capacities of five different commercial soaps. Apparatus: 5 test tubes‚ 5 conical flasks (100 ml)‚ test tube stand‚ Bunsen burner and stop watch. Materials Required: 5 different samples of soap and distilled water Theory: The foaming capacity of a soap sample depends upon the nature of soap and its concentration. This can be compared for various samples of soaps by taking the same concentration of solution and shaking them.The foam is formed and the time taken
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UNKNOWN CONCENTRATION OF KMnO4 OBJECTIVE 1. To determine the maximum wavelength of potassium permanganate. 2. To plot the calibration curve of potassium permanganate. 3. To determine the concentration of an unknown solution of potassium permanganate. APPARATUS Beaker‚ burette‚ glass rod ‚volumetric flask 100ml ‚dropper CHEMICALS Potassium permanganate (KMnO4)‚ distilled water PROCEDURE A. Preparation of the KMnO4 standard solution 1. KMnO4 was weigh accurately to nearest mg. The
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I thought the film seemed much longer‚ but reading the play it felt like a faster pace to me‚ because I was in more control of how I read it‚ and that I was more engaged in the story‚ wanting to know what happens next! But watching the film‚ I already know‚ so I knew what was coming‚ but the film did show a great portrayal of the story. After reading the play‚ the part of the film I was satisfied with was Walter was intense just like I imagined. I also was satisfied with the end of the movie how
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1. Put your safety goggles and lab coat on. 2. Gather all the necessary materials in order to conduct this experiment such as boiled water‚ distilled water‚ calcium chloride‚ distilled water‚ glycerin‚ test tubes‚ nails‚ test tube rack‚ graduated cylinders‚ tongs‚ scoopula‚ erasable marker and parafilm. 3. With the erasable marker‚ label the ten test tubes from 1 to 10. 4. For Test Tube 1‚ drop an iron nail in it without adding anything else. Place the test tube into the to-be-heated rack (50⁰F)
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Deionized Water vs. Distilled Water Deionized and distilled waters are both processed forms of water. Deionized water is produced by filtering water to the point where it is free of ions. This ion-free water will strip ions from surrounding material‚ acting like a super-solvent. This is often used in semiconductor and other high-tech processing as a "soft" solvent and relatively cheap cleaning fluid. Distilled water is most often produced by vaporizing less pure source water (tap‚ salt or even
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Steel Wool Scissors Ruler Lemon Juice Orange Juice Vinegar Distilled Water Four Small Bowls Thin Towel Tall plastic cup Graph Paper Procedure: Before beginning your experiment‚ make sure that the distilled water has been opened and exposed to the air for at least a few hours. This will allow it to absorb some carbon dioxide from the atmosphere and lower its pH from a level of about 7 to about 5.8. The distilled water will act as a model for "normal" rainwater‚ which has a pH of about
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Pino 1 ! Katherine Pino Ms. Warbington Chemistry: Period 5 September 23‚ 2014 Distilled or Poison? There are billions of people all over the world‚ and one thing they all require is water. Directly or indirectly‚ water affects all aspects of life. Without it‚ there would be no vegetation on land‚ no oxygen for animals to breathe and the planet would look entirely different than it does today. It is one of the most essential elements to health and is very important that your body obtains a certain
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In this lab activity students performed an experiment with the use of distilled water and baking soda solutions as control. The experimental controls are accuracy indicators of laboratory results. Thus‚ controls are important in a lab because the observation results are dependent on the controls. The experimental results can be determined to be valid when it is compared with the control solution. The higher the similarity between the results and the control solution‚ the more accurate the investigation
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our resourses with lesser and lesser wastage of efforts.Its maths which allows human mind to plan the concept of development.Today man has reached on the moon and even it is planning to look beyond the sun‚do you think it would have been possible without the knowledge of 1 + 1 =2.All mathematical concepts are real life experiments.The peano postulates‚the density theorem‚the Pythagoras theorem‚components of trigonometry all plays vital part in modern era engeering.The whole progress of humanity will
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overlapping PCR: 1 μL of Herculase II Fusion DNA polymerase‚ 10 μL of 5X Herculase II reaction buffer‚ 0.5 μL of a 100mM solution of dNTPs (25 mM each)‚ 2 μL of a 10 μM solution of each primer‚ 100 ng of each upstream and downstream fragments‚ 200 ng of pyrG marker fragment and adjust to 50 μL of double-distilled water. 35. Lysis Buffer: to prepare 50 mL of buffer dissolve 23.6 g of Guanidine thiocyanate (118.16 g/L) in 25 mL of double-distilled water. Once dissolved add: 2.5 mL of 1 M Tris-HCl pH 7
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