Experiment # 3 Acetylsalicylic Acid Introduction: The purpose of this experiment is to create and isolate pure acetylsalicylic acid from the substances salicylic acid and acetic anhydride. Then one will find the melting point to determine purity. Procedure: Make a hot bath. Weigh some salicylic acid and place in conical vial. Add .480mL of acetic anhydride and a drop of concentrated phosphoric acid. Drop in a magnetic spin vane and attach air condenser to vial. Partially submerge it in
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Acid Rain and its Chemistry Acid rain is a type of pollution that is becoming a major threat to our planet and is need of attention. Acid rain has significantly increased ever since the industrial revolution‚ and now around the world‚ countries like Russia‚ China‚ and those in Europe are facing increasing levels of acidity in their rain. Not only is it becoming more acidic but it is also spreading by the pumping of sulfuric gasses deeper into the atmosphere from of the use of taller smokestacks
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DISCUSS THE FOLLOWING: DIVERSIFICATION According to investment word. Com diversification is a portfolio to reduce exposure to risk by combining a variety of investments‚ such as stock‚ bonds and real estate‚ which are unlikely to all move in the same direction. It can also be defined as manufacturing business terminology used to describe the act of increasing choices for when to order what supplies from whom to bring products to the market. Assof
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COMPUTER PRODUCTION MVC Enterprises can manufacture four different computer models; the Student‚ Plus‚ Net‚ and Pro models. The following gives the configurations of each model: | STUDENT | PLUS | NET | PRO | Processor | Celeron | Celeron | Celeron | Pentium | Hard Drive | 20 gb | 20 gb | 20 gb | 30 gb | Floppy Drives | 1 | 1 | 2 | 1 | Zip Drives | Yes | Yes | No | Yes | Audio/Video | CD R/W | DVD | DVD +CD R/W | DVD +CD R/W | Monitor | 15” | 15” | 17” | 17” | Case | Tower | Mini-Tower
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Acid: A chemical substance (typically‚ a corrosive or sour-tasting liquid) that neutralizes alkalis‚ dissolves some metals‚ and turns litmus red. Ionic Dissociation: Dissociation in chemistry and biochemistry is a general process in which ionic compounds (complexes‚ or salts) separate or split into smaller particles‚ ions‚ or radicals‚ usually in a reversible manner. Strength of Acids: The strength of an acid refers to its ability or tendency to lose a proton. There are very few strong acids. A
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mixture with the standard 0.050 M sulphuric acid provided‚ using phenol red indicator until two or three consistent results are obtained. d. Calculate the weight of acetylsalicylic acid in each tablet and compare your results with the manufacturer’s specification. Compare your results with those given in different brands of aspirin. Titration Results Titration trial 1 2 3 Final burette reading (cm3) Initial burette reading (cm3) Volume of acid used (cm3) Average
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1. Define production. What are the factors of production? Define production: Production means the creation of Utility. Through production inputs are converted into output which can satisfy or meet wants or demands. So production is a process of transforming inputs into useable outputs. Utilities are created in three forms such as (i) Changing the form (ii) changing time and (iii) changing place. Example: Wood in a forest generally has no utility to a consumer but cutting the wood‚ changing
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Abstract The objective of this experiment was to observe multi-step purification of benzoic acid after performing the extraction from a mixture containing benzoic acid‚ cellulose‚ and methyl orange. Recrystallization was done to remove impurities from the sample. The amount of BA recovered during recrystallization is much less than the extracted amount of BA. The difference between the pure and impure samples was observed by comparison of melting points. It was found that impure samples will have
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Production and Properties of Metals Mr J E Chuter‚ Cert Ed 2012 En No 20100292 Introduction I have decided to produce a project based on the production and properties of metals‚ as although I have worked as a welder for over 30 years‚ and a welding teacher for the last 2 years on apart-time basis‚ I felt I didn’t know enough information on the material that I work on‚ on a daily
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Different antacids 8. Side effects 9. Nursing implifications 10. Inference Abstract of the work under taken Antacids are medicines that neutralize stomach acid. They are used to relieve acid indigestion‚ upset stomach‚ sour stomach‚ and heartburn. Antacids are taken by mouth and work by neutralizing excess stomach acid. They contain ingredients such as aluminum hydroxide‚ calcium carbonate‚ magnesium hydroxide‚ and sodium bicarbonate‚ alone or in various combinations. Antacid products
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