science demonstrators are specially trained in the hazards of using these chemicals. * Hydrogen peroxide (30%) - This is ten times stronger than the normal hydrogen peroxide you can find at the store * Sodium iodide solution‚ 2 M or * Potassium iodide solution‚ 2 M * Liquid soap * Food coloring * Graduated cylinder (500 mL) * Safety glasses * Rubber gloves for clean-up * Experiment * Video * Related Experiments * Reviews Magic Spheres - Science of Density
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Chemistry Lab Report 1 Nicole H. Healey (Experiment 1 and 2) October 7‚ 2014 Data Collection: Table 1: (First Titration) C2O42- Analysis Sample 1 Sample 2 Molarity of KMnO4 0.02m 0.02m Weight of Sample 0.237g 0.225g Final Buret Reading 28.5ml 26.3ml Initial Buret Reading 0ml 0ml Volume of KMnO4 dispensed 28.5ml 26.3ml Moles
Free Titration Potassium permanganate Mole
TARGET MARKETING - MEANING‚ BASIS AND ITS NEED It is not possible for a marketer to have similar strategies for product promotion amongst all individuals. Kids do not get attracted towards products meant for adults and vice a versa. Every segment has a different need‚ interest and perception. No two segments can have the same ideologies or require a similar product.Target Marketing refers to a concept in marketing which helps the marketers to divide the market into small units comprising of likeminded
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4.3 Exercise 4 - Titrations and indicators 1. 20 cm3 of methanoic acid (Ka = 1.8 x 10-4 moldm-3) of concentration 0.10 moldm-3 is titrated against sodium hydroxide of concentration 0.05 moldm-3. a) Calculate the pH of the solution: i) initially ii) after 10 cm3 of the alkali has been added iii) after 20 cm3 of the alkali has been added iv) after 30 cm3 of the alkali has been added v) after 50 cm3 of the alkali has been added b) Sketch a pH titration
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Determination of an Unknown Concentration of Potassium Manganate using Colorimetry Introduction The purpose of this experiment is to conclude the concentration of an unknown solution using colorimetry to plot a calibration curve. Colorimetry measures the absorption of light at wavelengths within the visible region of the electromagnetic spectrum. It can be used to identify the unknown concentration of a solution in reference to a solution of a known concentration. When a solution appears
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(320 g/mol) and Potassium Permanganate (158 g/mol). This subjects have varying molecular weight‚ one higher than the other. It is important to note whatvis Molecular Weight. MW is the sum of the mass of each constituent atom multiplied by the number of atoms that element in the molecular formula. With the aid of agar plates‚ we put some substrate on it for purpose of observation. Having a time-interval of 15 minutes‚ we gathered the data for interpretation. As it all went out‚ Potassium Permanganate
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CASE STUDY: SENSODYNE OVERTAKES COLGATE IN SENSITIVE CATEGORY INTRODUCTION The sensitive toothpaste segment accounts for less than 10% of the country ’s Rs 5‚400-crore toothpaste market at Rs 470 crore‚ but is growing at 50% a year. Oral care giant Colgate Palmolive‚ which controls about 53% of the country ’s toothpaste market‚ has been selling its Sensitive brand in India since the last seven years. India had very low levels of awareness on the condition of tooth sensitivity. Over the past
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Experiment 21: Reaction of some Akyl Halides Completed on November 13‚ 2012 Purpose The purpose of this experiment was to examine reactiveness of 10 organic compounds under both SN1 and SN2 conditions. Table of Chemicals Compound Structure Molecular Weight (g/ml) Boiling Point (°C) Melting Point (°C) Density (g/ml) Safety 1-bromobutane 137.03 102 -112 1.269 Flammable‚ irritant 2-chloro-2-methylpropane 92.57 51 -26 0.89 Flammable‚ irritant acetone 58.08 56.5 -95 0.793 flammable
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Abstract In this experiment‚ the nature of linkage isomers will be observed on the example of nitritopentaamminecobalt(III) Chloride and nitropentaamminecobalt(III) Chloride. Their relative stability will be compared on standard conditions and the infrared spectroscopy of both the isomers will be obtained to analyze the characteristic absorption bands for the nitro and nitrito group. Yield for nitritopentamminecobalt(III) Chloride was obtained to be = 1.9221 g(73.24 %) and yield for nitropentamminecobalt(III)
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Graded Assignment MidUnit Test‚ Part 2 Answer the following questions. You may use the periodic table in the Chemistry: Problems and Solutions book for this test. When you have finished‚ submit this assignment to your teacher by the due date for full credit. (5 points) Score 1. For an experiment‚ a biology student makes 1 liter of a solution containing the following substances‚ which are shown in the table below. Using the given information‚ fill in the missing parts of the table for each substance by
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