Bussy‚ had successfully reacted magnesium chloride with potassium to make a sizable amount of magnesium‚ and studied its properties. This alkaline earth metal has various physical properties. Magnesium is a light-weight metal that is silvery-white. The point in which it melts is 650°C. Its boiling point is 1090°C; lowest boiling and melting point of all alkaline metals. Its density is 1.74g/cm^3 and at room temperature (20°C) it is a solid. Magnesium is protected by a thin layer of oxide that is difficult
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Precipitation Titration Mohr Method Experimental The chloride ion (Cl-) is an important anion found in solids and solutions. In this experiment‚ the amount of chloride ion in an unknown sample J (NaCl + KCl mixture) of water using the Mohr method is determined‚ which relies on the solubility differences of two anions and the titration endpoint of a precipitate. The net ionic reaction during the titration is as follows: Ag+ + Cl- → AgCl(s) The Ksp for AgCl is 1.8 x 10-10 and
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sucrase activity because the amount of product produced is a result of the expiriment itself. 2. Explain why denatured sucrase was used as a control. Denatured sucrase was used as a control because activated sucrase would increase the activity. 3. Alkaline DNS denatures sucrase. Explain why it is important to denature the enzyme. It is important to denature the enzyme because leaving it active would increase the activity of the enzyme. Results Table 1: Effect of pH on Sucrase Activity Optical Density
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Assignments in Science Class X (Term II) 4 Carbon and its Compounds IMPORTANT NOTES 9. Unsaturated organic compounds : Organic compounds in which a double or a triple bond exists between two carbon atoms in a carbon chain‚ are called unsaturated organic compounds. 10. Hydrocarbons : Organic compounds which contain only carbon and hydrogen atoms are called hydrocarbons. 11. Straight chain hydrocarbons : Hydrocarbons‚ in which all the carbon atoms are linked to one another in a straight chain
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AAVIN DAIRY PROCESSING UNIT Amidst the cool hills of the Perur-Siruvani highway surrounded by modest greens‚ is located the AAVIN dairy processing unit. Spread over 10 acres of land‚ the unit is Coimbatore’s most sophisticated processing plant. Milk vans collect milk from even the remote villages and 15 vans report to this particular unit. Samples from each can are tested separately at room temperature and at 4°C and the results are aggregated. For the preliminary processing‚ Water from a cold
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THE EFFECT OF pH LEVEL ON CORROSION RATE A Long Laboratory Report Presented To; The Department of Chemical Engineering BY
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Hydrogen Peroxide & Inorganic Peroxy Compounds Hydrogen Peroxide Hydrogen peroxide (H2O2) is the simplest peroxide (a compound with an oxygen-oxygen single bond). It is also a strong oxidizer. Hydrogen peroxide is a clear liquid‚ slightly more viscous than water. In dilute solution‚ it appears colorless. Reactions Decomposition Hydrogen peroxide decomposes exothermically into water and oxygen gas spontaneously: 2 H2O2 → 2 H2O + O2 This process is thermodynamically favorable. It has
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3 Textile Organic Dyes – Characteristics‚ Polluting Effects and Separation/Elimination Procedures from Industrial Effluents – A Critical Overview Zaharia Carmen and Suteu Daniela ‘Gheorghe Asachi’ Technical University of Iasi‚ Faculty of Chemical Engineering and Environmental Protection‚ Romania 1. Introduction The residual dyes from different sources (e.g.‚ textile industries‚ paper and pulp industries‚ dye and dye intermediates industries‚ pharmaceutical industries‚ tannery‚ and Kraft
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Na+ 2 : Molecule that dissociates in water to form individual ions‚ ionic compound 3 : Substances whose molecules have more than one kind of atom 4 : Positively charged particle in nucleus 5 : Function is to store energy for later use M. 6 : Alkaline 7 : Double sugar made up of two monosaccharide units 8 : A group of atoms bound together in a group 9 : Non-charged particle in nucleus 10 : Chemical systems that absorb excess acids or bases maintaining a relatively stable pH 11 : A pure substance
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1. Procedure #1 detected 50/100 true positives and 100/100 true negatives. Procedure #2 detected 80/100 true positives and 70/100 true negatives. b. procedure 2 is more sensitive 2. TP/TP+FN = ? b. specificity 3. What might the following indicate? urine: RBCs‚ WBCs‚ nitrite‚ bacteria a. pyelonephritis 4. Why is albumin the first protein to be detected in tests for renal failure? b. its molecular size is smallest 5. Cortisol excess will result in _____ a. hypernatremia c. elevated glucose
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