Quiz #1 Attempt 1 Written: Jul 7‚ 2012 9:48 AM - Jul 7‚ 2012 9:50 AM Submission View Your quiz has been submitted successfully. Question 1 1 / 1 point At what time do you have to complete your online prelab assignment to be allowed to participate in the lab? Question options: A week before the lab Day before the lab at 10 pm The morning of lab day at 8 am One hour before the lab Question 2 1 / 1 point Which materials/chemicals belong in the desiccator? Question options: Drying
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values were very much in relation to the values mentioned in different research studies which have already been published. Table 4.7: Physiochemical evaluation of turmeric oil S.no. Tests Result 1 Refractive index 1.5128 2 Acid value 1.8933±.040 3 Saponification value 38.4492±0.6379 4 Solubility Insoluble in water 5 Peroxide value 4.1267±0.063 Uses Harmonic Mean Sample Size = 3.000 Values are mean±±SD of three independent determinations. 4.6 Antioxidant activity DPPH scavenging activity Figureure14
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FIRE AND FIRE EXTINGUISHMENT A BRIEF GUIDE TO FIRE CHEMISTRY AND EXTINGUISHMENT THEORY FOR FIRE EQUIPMENT SERVICE TECHNICIANS BY J. CRAIG VOELKERT COPYRIGHT ® J. CRAIG VOELKERT 2009 FIRE AND FIRE EXTINGUISHMENT A BRIEF GUIDE TO FIRE CHEMISTRY AND EXTINGUISHMENT THEORY FOR FIRE EQUIPMENT SERVICE TECHNICIANS INTRODUCTION The professional service technician‚ who selects‚ installs‚ maintains‚ recharges and otherwise performs service work on portable fire extinguishers‚ pre-engineered
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Discussion The main purpose of this lab was to synthesize four soaps and two detergents and determine which one would be the best for an environmental group to use in the event of an oil spill.1 To complete this task‚ five subgoals had to be achieved first. To find the solubility of the fats‚ oils‚ soaps‚ and detergents‚ each of them were placed into different solvents to see if they dissolved. None of the oils and fats were soluble in water (H2O)‚ sodium hydroxide (NaOH)‚ or hydrochloric acid
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Pure Appl. Chem.‚ Vol. 78‚ No. 8‚ pp. 1477–1491‚ 2006. doi:10.1351/pac200678081477 © 2006 IUPAC Carotenoids and other pigments as natural colorants* Alan Mortensen Chr. Hansen A/S‚ Color Research‚ Development and Application‚ Bøge Allé 10-12‚ DK-2970 Hørsholm‚ Denmark Abstract: Food colorants may be classified into synthetic‚ nature-identical‚ inorganic‚ and natural colorants. Natural colorants for food are made from renewable sources. Most often‚ the colorants are extracted from plant
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UNIVERSITY OF MALAWI BUNDA COLLEGE FEEDS AND FEEDING (ANS 321) 2012 LECTURE NOTES. Raphael Woyera Banda (AGR/09/14)‚ Bunda College‚ P.O Box 219‚ Lilongwe. FEEDS AND FEEDING (ANS–321) - 2012. Animals are kept for a purpose and must benefit the one keeping them. The benefit may be; - The animal itself (draft‚ entertainment and prestige) or - The products from the animals for instance milk‚ meat or hides. Animal husbandly involves; - Animal health‚ - Animal breeding
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1. (a)Correct the following statements. (i) The melting points of crystalline and amorphous solids are not definite. The melting point of an amorphous solid is not definite. OR The melting point of a crystalline solid is definite. P Ps X solute . Ps P Ps The equation for relative lowering of vapour pressure when solute remains normal is X solute P (iii)The degree of ionization decreases with dilution. The degree of ionisation increases with dilution. (iv) Tertiary butyl halide
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Lipids Biochemistry November 13‚ 2013 Lipids Lipids are families of biomolecules including fats and oils‚ waxes‚ steroids ‚ cholesterol and fat soluble vitamins. All lipids are naturally occurring compounds varying greatly in structure but share the common feature of being soluble in non polar solvents such as chloroform and ether but not in water. Lipids consist mainly of carbon and hydrogen atoms linked by non polar covalent
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B.Sc. First Year Semester – I Paper I .Fundamentals of Microbiology Credit - 1 1 Scope & relevance of Microbiology i) ii) iii) Definition & concepts Types of microorganism Distribution of microorganisms in nature 2. Development of Microbiology as a Scientific Discipline 1.1 History i) ii) iii) iv) v) vi) Credit – 2 Early observation of microorganisms Spontaneous generation conflict : Contribution of scientists Recognition of the microbial role in diseases. Koch’s postulates Recognition of microbial
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keep it simple science Ryde Secondary College‚ SL#710371 INDUSTRIAL CHEMISTRY What is this topic about? To keep it as simple as possible‚ (K.I.S.S.) this topic involves the study of: 1. THE CHEMICAL INDUSTRY 2. CHEMICAL EQUILIBRIUM 3. PRODUCTION OF SULFURIC ACID 4. PRODUCTION OF SODIUM HYDROXIDE 5. SOAP & DETERGENTS 6. THE SOLVAY PROCESS FOR Na2CO3 ...all in the context of the applications of Chemistry in human society. 1. THE CHEMICAL INDUSTRY The “Invisible” Industry Most people are familiar
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