Friday, January 31, 2020
Chemistry Research Part 1 Acids Essay Example for Free
Chemistry Research Part 1 Acids Essay Ethanoic acid is non-toxic and is a weak acid [4], meaning it will not do any damage to most surfaces as it does not corrode or bind to other metals, therefore can be easily removed through washing or rinsing it [2]. Disadvantages: Ethanoic Acid is the slowest de-scaler of the three acids, and is therefore the least effective. It also may cause an unpleasant smell, and can have a negative effect on the taste of coffee [6] meaning one would need to spend longer time rinsing and cleaning the machine thoroughly to ensure that the taste of the coffee is not affected. Citric Acid Advantages: Citric acid leaves behind zero toxic residues and has just enough acidic concentration to descale without etching or damaging household surfaces in any way and there are no volatile compounds or products that harm the environment. Disadvantages: Because citric acid is a weak acid, it wont remove heavy build-up of scale very quickly. It is also a powder hence it must be dissolved for use. It also works best with hot water meaning there will be higher energy consumption. Even when used with hot water, citric acid is not as effective at descaling as Sulfamic acid. Sulfamic Acid Advantages: Sulfamic acid is the fastest de-scaler It dissociates into hydroxonium ions more readily in aqueous solution than the others, therefore giving a greater concentration of atoms that are able to react with the calcium in lime scale. It is safe to use because it does not produce chlorine gas [5], which can be toxic. Sulfamic acid also has a low volatility. Disadvantages: Sulfamic Acid can be an irritant to eyes or skin and is the most expensive of the de-scalers. Q2) How these de-scalers remove limescale Limescale forms when hard water is heated above 61Â °C or when it is left to evaporate on surfaces such as taps and showerheads. Hard water is water that contains high quantities of calcium and magnesium ions. These hardness minerals, in the form of calcium carbonate and magnesium carbonate, precipitate out of hard water to form limescale [1]. Therefore, to clean or remove limescale, something needs to dissolve or soften calcium carbonate and/or magnesium carbonate, so it can easily wash away. Acids cause mineral deposits such as rust to oxidise, thereby weakening them and making it possible to simply wash them away. Lime scale removers work by chemically reacting with the lime scale to form safe chemicals and ions. Lime scale is Calcium Carbonate, and when broken down by strong acids, produces Calcium Chloride, Water and CO2. These are much safer, and can be washed away with water, to remove the CaCl from the area. Bibliography [1] http://www.dynapipe.co.uk/how-to-remove-limescale.htm [2] http://www.coffeehomedirect.com/how/to/clean/a/coffee/maker/with/vinegar [3] http://www.ehow.co.uk/how_7404899_delime-coffee-maker.html [4] http://incarinsurance.org/advantages/advantages-and-disadvantages-of-using-ethanoic-acid-as-a-descaler-.html [5] http://uk.answers.yahoo.com/question/index?qid=20130123013345AA71LkB [6] http://www.p4c.philips.com/cgi-bin/dcbint/cpindex.pl?scy=ZA;slg=ENG;ctn=HD5405/60;dct=FAQ;refnr=0092154;view=aa12_view_partial.html;session=20120502004843_66.249.71.242;faqview=1
Thursday, January 23, 2020
Macbeth :: essays research papers
                    â€Å"Macbeth†          When a play is presented on film, the director takes the script, and with poetic license, interprets it. A film not only contains the actual words of the author (in this case Shakespeare), but it includes action, acting, and cinematographic techniques; the three are used to better portray the author’s story. Using these elements, the director’s interpretation of the plot is reinforced. The film provides symbolic images and a visual interpretation, hence Shakespeare’s play â€Å"Macbeth†is better understood by the viewers.           The use of action was essential in the film. Murder, parties, battles, dancing, and embraces were actions that were focused upon the most. For example, in the scenes of Duncan’s murder, the actions of Macbeth and Lady Macbeth, the two guards, and Duncan were emphasized. The director used close-ups and long pauses in dialogue and action to give the viewer more time to focus on details in the scenes. Also, the long pauses and close-ups add to the drama, and overall mood of the film. Facial expressions, body movements, and speech were combined to portray â€Å"Macbeth†in such a way that the characters, and their emotions could be better understood. Thus, reinforcing the plot. For example, the close-ups of Macbeth’s face in the scenes surrounding Duncan’s murder clearly convey to the viewer his fear, guilt, uncertainty, anxiety, confusion and horror. Without these close-ups, these emotions might possibly have not been c learly sent to the viewer.           The actions of the characters as a whole in the film portray the change in mood over the course of the film. For example, in the beginning scenes, the soldiers rode high on their horses, the children played and laughed, townspeople seemed to be bustling about in a pleasant manner, and smiles were on all faces, especially at the party at Macbeth’s house the night of Duncan’s murder. Towards the end of the fourth act, the soldiers, townspeople, and children were crying, moaning and showed signs of suffering. In conclusion, these overall actions of the characters portrayed the mood change over the course of the film, thus emphasizing the fact that Macbeth had brought poverty, sorrow and horror to Scotland.           The cinematography enforced the mood, drama, and plot. The use of color in the film was telltale of the mood. The colors were drab, lifeless, mellow colors. These colors were telltale signs of the setting and mood of the play. The setting was in a sorrowful, dirty, suffering country; the mood was sorrowful and suffering as well. Macbeth :: essays research papers                     â€Å"Macbeth†          When a play is presented on film, the director takes the script, and with poetic license, interprets it. A film not only contains the actual words of the author (in this case Shakespeare), but it includes action, acting, and cinematographic techniques; the three are used to better portray the author’s story. Using these elements, the director’s interpretation of the plot is reinforced. The film provides symbolic images and a visual interpretation, hence Shakespeare’s play â€Å"Macbeth†is better understood by the viewers.           The use of action was essential in the film. Murder, parties, battles, dancing, and embraces were actions that were focused upon the most. For example, in the scenes of Duncan’s murder, the actions of Macbeth and Lady Macbeth, the two guards, and Duncan were emphasized. The director used close-ups and long pauses in dialogue and action to give the viewer more time to focus on details in the scenes. Also, the long pauses and close-ups add to the drama, and overall mood of the film. Facial expressions, body movements, and speech were combined to portray â€Å"Macbeth†in such a way that the characters, and their emotions could be better understood. Thus, reinforcing the plot. For example, the close-ups of Macbeth’s face in the scenes surrounding Duncan’s murder clearly convey to the viewer his fear, guilt, uncertainty, anxiety, confusion and horror. Without these close-ups, these emotions might possibly have not been c learly sent to the viewer.           The actions of the characters as a whole in the film portray the change in mood over the course of the film. For example, in the beginning scenes, the soldiers rode high on their horses, the children played and laughed, townspeople seemed to be bustling about in a pleasant manner, and smiles were on all faces, especially at the party at Macbeth’s house the night of Duncan’s murder. Towards the end of the fourth act, the soldiers, townspeople, and children were crying, moaning and showed signs of suffering. In conclusion, these overall actions of the characters portrayed the mood change over the course of the film, thus emphasizing the fact that Macbeth had brought poverty, sorrow and horror to Scotland.           The cinematography enforced the mood, drama, and plot. The use of color in the film was telltale of the mood. The colors were drab, lifeless, mellow colors. These colors were telltale signs of the setting and mood of the play. The setting was in a sorrowful, dirty, suffering country; the mood was sorrowful and suffering as well.
Wednesday, January 15, 2020
Marketing Strategies Essay
Marketing strategies are not effective and they are just a fad for different organizations. Agree/Disagree Sultan Lashari In statement Marketing strategies are not effective and they are just a fad does not fit in the parameters of agreeable statement; it forces us to consider the health of the statement in terms of profit impact of marketing strategy. Marketing strategy many have its share of setbacks in the marketing moves if that is given the status â€Å"not being effective†. It does not mean holding back growth. Companies often desire a balanced product portfolio. [ (Kotler) ] To treat marketing strategy as just a fad is on the wrong basis, because the strategy changes in terms of several key strategic factors that can be explored to make changes of the situation. The term fad is a product life cycle type and a fad curve represents quick popularity and a sudden decline and extended fad except that residual sales at a fraction of earlier sales after the initial success . A sophisticated marketing planner must be able to ask the right questions and planning strategy must relate to the problem of building right kind of approach which is nothing but a path way to achieve the desired end in competitive market environment. [ (Forsyth) ] In order that marketing strategy is shaped to win-win situation that is to be termed effective, it must see that marketing strategy is devise around the stage, a particular product is in the product life cycle which has a typical pattern from traditional, boom or classic, fad, extended fad, seasonal or fashion, revival or nostalgia and bust. In fad time, sales look like: FAD Sales Time In devising marketing strategy, we must keep in mind that it can only be considered effective if we do not disregard the basic fact that product promotion has a direct bearing to the stage a product is at in the product life cycle. Formulating and implementing marketing strategy is a distinct decision-making focus. Planning and executing the marketing strategy involves many inter-related decisions such as: what to do, when to do it, and how it should be done. [ (Forsyth) ] This is got to be based on the nature of the organization and its product portfolio. The reason for calling marketing strategies ineffective or different organizations could be attributed to something for saying sake. As a matter of fact, marketing strategies involve various market situations and one need to make decisions intelligently. The process of formulating and implementing marketing strategies involves corporate objectives and strategy. [ (Forsyth) ] The marketing is the game of variable and by placing heavier accent on one or more of the marketing variables that is product, price, promotion and distribution, the winning platform can be labeled. The entire marketing concept leaves much to imagination in developing correct mix [ (Kotler) ]. In a nutshell, devising marketing strategies necessitates due diligence on the stage, the product is in the product life cycle because you have to understand market opportunities in or business level objective, for new market entries, for growth markets an or mature and declining markets. This enables the marketers for correct target marketing and product positioning. [ (Kotler) ] Works Cited Forsyth, P. Every thing you need to know. Kotler, P. Management skills in marketing.
Monday, January 6, 2020
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