Safety measures in the chemistry laboratory The mentors are responsible for instructing the competitors as to the risks to which they are subjected when working in a chemistry laboratory‚ as well as to the basic safety measures‚ and first aid. Specific behavioral and safety measures must be obeyed to prevent accidents. Rules in the lab: * Use protective clothing all the time (e.g. lab coat and safety glasses) * Use a hair band to keep your hair away from your face. *
Premium Fire extinguisher Chemistry Poison
Chemistry of Fire and Firefighting Firefighting in the early 1700’s differed from the ways that we fight fires today. In the past‚ man-kind didn’t know the chemistry of fire and the different kinds of fire that ignite. Technology has improved a lot from the 1700’s. When technology improved‚ so did the techniques of fighting fires. Firefighters have learned that fires can start from something as simple as a frayed wire and can start from something as complex as a lightning bolt. Technology
Premium Firefighter Fire extinguisher Fire
Target Market Demographic Age : 18 to 45 years old Gender : Male and Female Education : SPM and above Occupation : Students to working adults Income Range : Middle and Upper class Race & Ethnicity : All races Geographic Location : Urban and Sub-urban Physiographic Perception : Consumers who concern about
Premium Teeth Oral pathology Toothpaste
segmentation‚ targeting‚ positioning‚ differentiation and branding For many organizations today to be successful they must know what consumers needs are‚ so as to satisfy them successfully and profitably to avoid wastages of resources. For these organizations to be successful they have to undertake segmentation‚ so as to know their target market and also to know the available competitors in the market producing the same goods. As a matter of fact‚ for Colgate to be successful they must segment
Premium Toothpaste Colgate-Palmolive Marketing
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)
Premium Infrared spectroscopy Spectroscopy Raman spectroscopy
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
Premium Sodium chloride
LIMIT ON CHARACTERISTICS OF A TOOTH PASTE: CHARACTERISTICS LIMITS 1 Flavor Non-irritant to oral mucosa. Concentration should not exceed 1-2% 2 Size Price 3 Color Food dyes should be used. 4 Odor Pleasant 5 Antibacterial Xylitol: Helps reduce the development of cavities. Concentration should not exceed 25%. 6 Foaming Sodium Lauryl Sulfate (SLS) Concentration should be as low as 0.5%. Detergents used should be 1-3% 7 In toxic -Sodium fluoride a toxic chemical
Premium Teeth Toothpaste
Play Doh This is possibly the easiest play dough recipe ever. It takes about 5 minutes to make and best of all there is no cooking. Just throw all the ingredients in a bowl and mix. Simple as that. It’s great for making with kids and will last for ages. You can add glitter to the mix for added sparkle and even some peppermint oil to make it smell great. You will need: 1 cups plain flour 1/2 cup of salt 2 tablespoons of cream of tartar (optional) 1 tablespoons of cooking oil Food colouring
Premium Water Cooking Bread
Study of Solubility Equilibrium of Potassium Hydrogen Tartrate Wang Haina 1. Aim 1. To determine the solubility of potassium hydrogen tartrate (KHT) at various temperatures from 10°C to 50 °C‚ and determine the corresponding Ksp at these temperatures. 2. To obtain the changes in enthalpy and entropy of the dissolution of KHT from the dependence of Ksp on temperature. 2. Results and discussion 2.1 Collection of data A portion of KHT (1 to 1.5 g) was added into about 100 mL of deionised
Premium Solubility Error Standard deviation
Purpose The purpose of this experiment is to observe a redox reaction and understand what it means. We will observe the new bonds formed and the importance of the electron in the formation of these new bonds. Materials Boileezers (boiling chips) Desiccant 0.17M acetic acid (acidified water) Solution of Sodium thiosulfate Granular zinc Iodine crystals Zinc ion and iodine-iodide-triiodide ion in water Solid zinc iodide Mineral oil Silver nitrate Magnesium turnings 3M Hydrochloric acid (HCl) solution
Premium Iodine Electric charge Zinc