acidification of salicylic acid and acetic anhydride. The objective was to convert a specific amount of salicylic acid into the same amount of aspirin that was high in purity. Furthermore‚ the other objectives were to enable students to conduct the synthesis of aspirin‚ reinforce skills or recrystallisation and the technique of melting point determination. The amount of each compound should be the same because there is a 1:1 ratio between them. The purity of the synthesized aspirin was measured by determining
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These lands fills have huge impacts on the environment; they cause pollution to the local environment by contaminating the groundwater and aquifers‚ contaminating the soil‚ and producing methane. One of the ways to help reduce this problem is by recycling. When you recycle‚ you convert waste materials into reusable objects‚ this process prevents waste of potentially useful materials. Reusing these materials can have numerous benefits to the environment and the economy as well. First of all when
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SYNTHESIS OF ESTERS USING GREEN AND NON-GREEN CHEMISTRY Abstract Esters are a class of organic compounds with the general formula RCOOR’. Ester also contributes the flavor and aromas in fruits and flowers. The esterification reactions will use in the procedure‚ which are the interaction of a carboxylic acid with an alcohol‚ aided by an inorganic acid catalyst (H2SO4). Moreover‚ the green method will not use any catalyst but using heating source instead (microwave). Based on the comparison of
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Effects of Recycling Recycling is the processing of waste materials in order to make them reusable. This helps conserve energy and reduce the consumption of natural resources. Recycling used products is one of the best ways to save the environment. It is important to recycle‚ so as to avoid environmental harm. Used plastic bottles‚ glass‚ and newspapers can be effectively recycled to make useful items. Here are some positive effects of recycling. Positive Effects of Recycling Recycling Preserves
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Jeana Greaves Chem3301-112 June 19‚ 2013 Synthesis of Aspirin from Methyl Salicylate Introduction The synthesis of Aspirin (Acetyl Salicyclic Acid) began with methyl salicylate and sodium hydroxide as the reagent. The polar oxygen accepts the electrons from now positively charged hydrogen. The positively charged sodium disassociates leaving the hydroxide ion with a negative Scheme 1 shows the mechanisms that were demonstrated during the synthesis of Aspirin. charge that attracts to the positively
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benefits of recycling‚ I think you should be ashamed if you are not really aware about the reasons why you should recycle. Recycling should be the order of the day and one needs to be aware about the importance of recycling today to have a better tomorrow. Take a look around you; does it not enrage you when people waste energy or even bits of paper for completely unnecessary things? Would it not be a wiser idea to incorporate discipline amongst us and follow certain basic rules of recycling? Before you
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Recycling reuses waste materials such as glass bottles‚ Paper‚ plastic‚ and aluminum. It has been this way now for years now and more people need to take more action in recycling their waste. It’s been proven that recycling our waste has improved our world to be more cleanly sanitary. There are a lot of ways we can recycle the things we have around the house. For example‚ glass from a Snapple bottle can be broken down and be put back together to make a new glass bottle. Throwing away materials is
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Today we have a serious problem with pollution‚ resulting not only soil contamination‚ environmental‚ noise or air‚ we can significantly reduce this impact all being aware and knowing that recycling is reuse; if we make a daily habit will give more life to our planet. On the other hand‚ if we see further recycling is environmental sustainability and if done properly would take advantage of a more effective way of natural resources. But really know what is recyclable? Is a physical-chemical or mechanical
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importance of recycling cans‚ bottles‚ and paper but food waste has been overlooked until recently. On October 21‚ 2009‚ San Francisco made it illegal to throw orange peels‚ coffee grounds and grease-stained pizza boxes in the trash. I believe that this ordinance to help reduce waste is positive and should be considered in other major cities. First‚ I’d like to talk to you about what exactly the law is and how it is enforced. Second‚ I want to discuss the benefits of compost recycling. And last I want
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Recycling is processing used materials into new products to prevent waste of potentially useful materials‚ reduce the consumption of fresh raw materials‚ reduce energy usage‚ reduce water and air pollution. Many kinds of glass‚ paper‚ metal‚ plastic‚ textiles and electronics can be recyclable materials. Goverments encourage their citizens to seperate their garbage and they make some rules for restaurants and supermarkets to supply recycling process. Although it is claimed that recycling is not worth
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