information you have researched before Diffusion refers to the passive movement of molecules along the concentration gradient. In this case we will be looking at the diffusion of acid in agar blocks. Agar is a jelly like substance and the indicator methyl orange is added which will turn red in the presence of acid. Hence we can measure the time taken for the colour change to calculate the rate of diffusion of hydrochloric acid in agar blocks. Variables Independent variable Concentration of hydrochloric
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11. Glass rod 12. Filter funnel 13. Beaker (80cm3) 14. Beaker (250cm3) 15. KA1 (monobasic acid‚ HX) 16. Methyl orange as indicator 17. Solid sodium carbonate 18. Distilled water Theory: To determine the exact concentration of a monobasic acid‚ HX‚a standard base solution is prepared. Then‚ a certain amount
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Place 3 test tubes in a test-tube rack. Use a clean eye dropper for each alcohol‚ place 4 drops of 1-butanol in the first tube; in the second‚ place 4 drops of 2-butanol; and in the third‚ place 4 drops of 2-methyl-2-propanol. 2. Add 10 drops of concentrated HCl to each of the three test tubes. Shake the mixtures very gently. 3. Allow the tubes to stand for 1 min and observe for evidence of cloudiness. 4. Dispose of the contents of the test tubes in the
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SECTION 1 INTRODUCTION CHAPTER # 1 HAIDRI BEVERAGES (PVT) Ltd. ISLAMABAD 1.1. INTRODUCTION Haidri Beverages Islamabad is situated on the Kahota Road industrial Triangle Islamabad. It occupies an area of about 8 acres. It is a private factory. This factory manufactures carbonated beverages and pure water and sells it as Pepsi‚ Miranda‚ 7Up‚ Mountain Dew and Aquafina. To sell these beverages and water‚ factory has got the license from Pepsi Co International (PCI) USA. So that
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INTRODUCTION Acetone also called 2-propanone or dimelthyl ketone is the organic compound with the formula of (CH3)2CO. Acetone is one of the simplest of the organic compound that called ketones. The figure below showed the chemical structure of acetone: Figure 1: Chemical structure of Acetone This chemical is the one of the most important in chemical industry due to their properties. It is a colorless liquid that has a characteristic of sweet odor and used as a nail polish remover. It
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= 6 | hex | | n = 9 | non | n = 3 | prop | | n = 7 | hept | | n = 10 | dec | n = 4 | but | | | | | | | Hydrocarbon Suffixes Hydrocarbon Suffix Alkane ane Alkene ene Alkyne yne Common alkyl substituents CH3- methyl CH3CH2- ethyl CH3CH2CH2- propyl CH3CH2CH2CH2- butyl Branched chains Example 1 : Rule 1. Identify the longest continuous chain of carbon atoms SIX = hexane root Rule 2. Number the chain beginning at the end of
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Biochemical Test – Enterobacteriaceae Bacterial spp incapable of fermenting glucose cannot utilize lactose. 2 enzymes necessary for a bacterium to take up lactose: A. β-galactoside permease – facilitates the entry of lactose molecules to bac cell wall B. β-galactosidase – breaks down lactose into β-D glucose and β-D galacatose LF possess both enzymes NLF do not possess β-galactosidase LLF do not possess β-galactoside permease Glucose fermenters only (true enteric pathogen)
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Dina Karina Lab performed: 1/22/15 Chem 2203-012 Report due: 1/29/15 TA: Kavitha Akula Experiment 4A: Determination of a Partition Coefficient for Benzoic Acid in Methylene Chloride and Water‚ and Experiment 4B: Solvent Extraction I: Acid-Base Extraction Using the System Benzoic Acid‚ Methylene Chloride‚ and Sodium Bicarbonate Solution Objective The purpose of this experiment is to familiarize oneself with the general procedures determining a partition coefficient
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THE BHOPAL GAS TRAGEDY DECEMBER 3‚ 1984 CHOITHRAM SCHOOL NORTH CAMPUS SESSION – 2014 – 15 FA I Social Science – PPT On Disaster Class – X – B Submitted By – Priyansh Pandit Submitted To – Vivek Agrawal Sir ACKNOWLEDGEMENT I would like to express my special thanks to gratitude to my teacher Mr. Vivek Agrawal sir as well as our principal Ms. Nalini Pathak who gave me golden opportunity to do this wonderful project on topic “Disaster”‚ which also helped me in doing a lot of research and I came to
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Synthesis of Aspirin from Oil of Wintergreen Objectives: In this experiment‚ the Oil of Wintergreen is put into an Erlenmeyer flask containing sodium hydroxide to create sodium salicylate. The solution is then refluxed which means that the solution will be boiled in a base‚ then condensed in a condenser. This replaces the carbon on the ester at carbon 1‚ with an oxygen atom which will have an ionic bond with a sodium anion. This yields sodium salicylate which will be acidified in methanol
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