to the military to use as a weapon in 1916. Although mustard gas could possibly been developed as early as 1822 by a French chemist‚ Cesar-Mansuete Desperetez. Thirty-two years later Alfred Riche repeated this reaction of the sulfur dichloride and ethylene‚ but both Riche and Desperetez did not note any harsh properties. In 1860‚ Frederick Gutherie synthesized and described the characteristics of the compound and it’s irritating properties. Another chemist known as a pioneer in cocaine chemistry
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PAC-II COMPLEXOMETRIC TITRATION Course Contents: C OMPLEXOMETRIC TITRATION T ITRATION Complexation‚ Chelation. Werner’s co-ordination number‚ Titrants Stability of complexes‚ titration curves. Types of complexometric titrations. Methods of detecting end point‚ Standardization. Application of complexometric titrations. COMPLEXOMETRIC TITRATIONS COMPLEXOMETRIC TITRATIONS What is Complexometric Titration (CT)???? What What is a complex metal ion? A complex
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SCH 4U1 FINAL EXAM REVIEW ATOMIC STRUCTURE AND MOLECULAR ARCHITECTURE 1. Describe the wave mechanical model of the atom. 2. Write the ground state electron configuration for Br. 3. Explain why the first ionization energy for Ne is significantly greater than Na. 4. Distinguish between ionization energy and electronegativity. 5. How does VSEPR Theory account for the fact that the bond angle in H2O is less than NH3? 6. Which of the following molecules are polar? Include diagrams
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Plastic This is the most common packaging material and‚ at the same time‚ one of the most difficult to dispose of. The factors common to all plastics are that they are light‚ strong cheap to manufacture. It is for these reasons that they are used so much‚ as an alternative to cardboard glass packaging materials. Almost 10% of our rubbish consists of different types of plastic. They are a problem in landfills as they are bulky‚ they contaminate degrade slowly. Separated the rest of the waste
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dalimss EV.S PROJECT Disease caused by the Environmental exposure MADE BY- [Type the author name] [Year] Environmental Diseases In epidemiology‚ environmental disease is disease caused by environmental factors that are not transmitted genetically or by infection. Apart from the true monogenic genetic disorders‚ environmental diseases may determine the development of disease in those genetically predisposed to a particular condition. Stress‚ physical and mental abuse‚ diet‚ exposure
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Coast petrochemicals project in United States is nearing completion and the company expects this project to start up in the mid 2017. This project consists of an ethane cracker and related polyethylene facilities that will increase CPChem’s U.S. ethylene and polyethylene capacity by more than
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1 CHM 1321-C Final Exam (prof. S. Gambarotta) Your Name: ___________________ April 12– 2013 Student #: ______________ 1. Solution key will be posted today on the web to day. 2. You must respond correctly to the first 41 exercises (1 mark each) to get the full mark. 3. There are 3 bonus questions at the end (4 mark each). In case of correct answers‚ each will add 4 marks to whatever you scored from the non-bonus questions. 4. Deliver the entire booklet 2 1) How many π bonds are present in
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Chapter 3 1. 1 atom of X = atomic mass (amu) 1 mole f X=atomic mass in grams 1 mole of something = 6.022 x 1023 units of that substance 1 mole of a compound =66.022 x 1023 atoms 6.022 x 1023 amu =1 g 2. What is the mass of 6 atoms of Fe? Answer: 6 atoms of Fe x 55.85 amu÷atom of Fe x 1 g of Fe÷6.022 x 1023 amu = 3. How many atoms does it take to make 1 g of Gold (Au)? Answer: 197.0 g Au =1 mole of Au
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expand human possibilities. Nanotechnology has various applications in medicine. One application is employing nanoparticles to deliver drugs and other substances to cancer cells. Particles are engineered to attach to the cancer cells directly. Ethylene glycol molecules are used to stop white bloods cells to attack the nanoparticles therefore increasing the circulation time in the human body. Once the cancer cell is located the payload is delivered or alternatively‚ X-ray is used to activate the
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not been evaluated by the FDA. This product is not intended to diagnose‚ treat‚ cure‚ or prevent any disease. Ingredients Sodium Palmitate‚ de-ionized water‚ sodium silicate‚ perfume‚ magnesium sulphateheptahydrate‚ sodium lactate‚ tetrasodium ethylene diaminetetraacetate‚ titanium dioxide‚ liquid paraffin cas#8042-47-5‚”+/-Cl12490. Sodium Palmitate Uses: Used for cleansing and creating lather. About This Ingredient: Sodium Palmitate is a salt of Palmitic Acid (according to Cosmetic Cop’s Dictionary
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