Most Noticeable Research Paper Topics for Climate Change

Most Noticeable Research Paper Topics for Climate Change The cost of an essay is dependent upon the quantity of effort the writer has to exert. There are many small business report writing tips which can also help you learn to compose an outstanding report. When you own a list before your eyes, it is going to be simpler to compose your mind and begin considering a specific matter. Even if a particular research paper topic is getting lots of buzz at this time or other men and women seem interested in writing about it, don't feel tempted to make it your topic if you don't genuinely have some kind of interest in it also. To start with, it's important to specify which kind of reports is necessary for a specific intent. Quite frequently, the very best topic is one which you truly care about, but you also will need to get ready to research it. Also, include your own perspective on this issue and you couuld write why exactly you opted to write on this theme. Indicate a minumum of one source or reference in your initial post. Before you commence writing a single word of your paper, you first will need to understand what your thesis will be. If you prefer excellent paper essay examples, reach out to us here today and we are going to do our very best to supply you with the most suitable guidance. More frequently than not, your essay is about the program work. An argumentative essay requires you to choose a topic and have a position on it. Therefore, a superb structure of all your chapters is necessary for a great first impression. It is better to select a topic in which you have your interest, and you may present new ideas by studying the appropriate literature currently offered. If you're confused with a selection of interesting topics to research online, it's much better to determine what interests you the most. Exactly like the research writing the choice of the research topic is a difficult issue to do. Such a paper should concentrate on the advantages and disadvantages of the method and compare it to similar procedures. The most important job of cross-sectional strategy is to compare examinees of different age. It is the alternative method to longitudinal method. Explain what you learned in this research approach. Longitudinal method accounts for individual social, psychological and psychophysiological peculiarities of somebody. These methods practically are thought to be mutually complementary. Longitudinal method provides the chance of defining genetic connections between phases of psychic improvement. The issue is that cross-sectional method presupposes the introduction of equivalent groups according to numerous elements, such as sex, education, social level and others. Culture explains what's going on here because these are distinctive and local phenomena. Science does not require consensus. The key thing that we must discuss is that how to help to lessen the gasses on our earth. Let's take climate change for instance and whether it's solely due to human mistreatment of Earth. It's necessary that each and every person on earth will consciously attempt to cut back their personal carbon dioxide output and that society for a whole will diminish the emission of greenhouse gases through industry and transportation of products. The managing of solid wastes in recent time has come to be an extremely major challenge. Even subtle changes in the planet's orbit could really make a difference. Just in the previous 40 decades. Analyze deforestation rates in a particular area or globally over a time period.

Writing an Expository Essay by Samuel R. Ellis

Writing an Expository Essay by Samuel R. EllisThe Cambridge University Press has published a new work of the author on writing an expository essay. 'Writing an Expository Essay: Essays in the Renaissance Period' by Samuel R. Ellis is a classic book that teaches the student how to write an expository essay.An Introduction to an Expository Essay is divided into four sections, each with a subheading that leads to a chapter. The first section discusses the nature of the essay, while the second discusses the material to be discussed, the third describes the structure of the essay, and the fourth section, which I have titled 'Preface,' presents a summary of the thesis of the essay. This section of the Introduction to Expository Essays starts with a description of the essay type.The second section of the work stresses the writer's nature. It continues with a definition of the term 'expository essay.' Then it takes us to the outline, with a comparison between the manuscript and the outline.T he third part involves details of form, which is followed by a review of the various styles of writing. Following that is the analysis of the main questions that the essay must answer. Then come the arguments and the conclusion. Finally, the author's style, and how he will modify his style as he evolves as a writer are examined.The student should be able to follow the writing style of the writer throughout the essays. For example, when it comes to essay topics, Ellis always begins with some general topic on the main theme of the essay. He then moves on to an examination of the thesis and a brief description of the arguments supporting it.The writer's purpose and the style are both important. The aim is to show that the writer is not just presenting one side of the story, but both sides, especially if there is a need to respond to an argument that someone is making.The reader should understand the writer's intent by the time the essay is finished. In addition, there should be some te ndency toward ambiguity. This helps the reader to engage with the writer's ideas, but allows them room to make up their own minds about the issue.While some students would feel uncomfortable taking a philosophy or science class without a teacher explaining what an expository essay is, I believe that most of us should have a good idea about what an expository essay is before taking the course. Using the author's introduction, we can easily learn what it is all about. We can then become better writers and better readers.

Walmart SWOT Essay Example For Students

Walmart SWOT Essay SWOT Analysis Wal-Mart Strengths Wal-Mart is a powerful retail brand. It has a reputation for value for money, convenience and a wide range of products all in one store. Wal-Mart has grown substantially over recent years, and has experienced global expansion (for example its purchase of the United Kingdom based retailer ASDA). The company has a core competence involving its use of information technology to support its international logistics system. For example, it can see how individual products are performing country-wide, store-by-store at a glance. We will write a custom essay on Walmart SWOT specifically for you for only $16.38 $13.9/page Order now IT also supports Wal-Marts efficient procurement. A focused strategy is in place for human resource management and development. People are key to Wal-Marts business and it invests time and money in training people, and retaining a developing them. Weaknesses Wal-Mart is the Worlds largest grocery retailer and control of its empire, despite its IT advantages, could leave it weak in some areas due to the huge span of control. Since Wal-Mart sell products across many sectors (such as clothing, food, or stationary), it may not have the flexibility of some of its more focused competitors. The company is global, but has has a presence in relatively few countries Worldwide. Opportunities To take over, merge with, or form strategic alliances with other global retailers, focusing on specific markets such as Europe or the Greater China Region. The stores are currently only trade in a relatively small number of countries. Therefore there are tremendous opportunities for future business in expanding consumer markets, such as China and India. New locations and store types offer Wal-Mart opportunities to exploit market development. They diversified from large super centres, to local and mall-based sites. Opportunities exist for Wal-Mart to continue with its current strategy of large, super centres. Threats Being number one means that you are the target of competition, locally and globally. Being a global retailer means that you are exposed to political problems in the countries that you operate in. The cost of producing many consumer products tends to have fallen because of lower manufacturing costs. Manufacturing cost have fallen due to outsourcing to low-cost regions of the World. This has lead to price competition, resulting in price deflation in some ranges. Intense price competition is a threat. .

Guidlines For Writing An Essay - Tips That Will Help You Create a Great First Draft

Guidlines For Writing An Essay - Tips That Will Help You Create a Great First DraftGuidlines for writing an essay are one of the most important things that you will need to learn when you begin to write your next paper. You can find that most guides will also give you a template of sorts to help you build the essays. However, if you want to be able to create a very good first draft, then you should consider how the first paragraph should go and what to expect after that.The first paragraph will play a major role in the entire essay. In fact, it will play a major role in many of the other parts of the essay as well. The first paragraph is the place that you should be creating a hook for the essay. The hook should provide the reader a reason to continue reading your essay.The next part of the essay is your argument. This will be the main theme of your essay. You should make sure that you are going into this with the premise that you want to persuade your reader.The first paragraph shou ld be extremely short. A guideline for writing an essay should be that you shouldn't get into long speeches. Rather, you should use the first paragraph to create your argument.It is also important that you look into the sentence structure of your essay. A guideline for writing an essay will be that there are three different sentence structures that you should use. These are the three sentence structure, the four sentence structure, and the sentence structure that combine the three above structures.The three sentence structure will help you to create sentences that have very little words. The four sentence structure will help you to create sentences that use longer words and less words. Finally, the sentence structure that combines the three above three will help you use more words but lesswords.The guideline for writing an essay that includes all of these three types of structures is known as the x-writing system. This system is also used in the guide for writing an essay that inclu des all of the other structure examples. The x-writing system will show you that the proper way to write an essay is with sentences that have less words and a structure that have more than three sentence structure forms.These are just some of the guidelines for writing an essay that you will need to know. There are actually so many different guidelines for writing an essay that you should be sure to take time to really consider each of the important guidelines for writing an essay. If you really want to learn the guidelines for writing an essay, then you should find a good guide for writing an essay and follow it carefully.

Extended Essay Topics in Politics

Extended Essay Topics in PoliticsStudents who want to write an extended essay in political science may find that they have a lot of topics to choose from. However, not all of these topics are suitable for them. Students may find themselves at a loss as to which topic to use for their extended essay. Here are some extended essay topics in politics that students can use.Here one has to consider the particular political party or candidate that is in question. The political party or candidate will be part of the text that students write for the course. If one's goal is to write an extended essay about a particular political party, this is the topic that is most appropriate.Students who intend to write an extended essay in political science should not rely on the contents of one of the candidate's campaign brochures. They will be able to use this form of research to help them decide if the candidate or the political party is the best choice for them.Students who want to focus on the basic political ideas of the political party will find that they need to delve deeper into the candidate's policies and his or her commitment to change the political culture. Students can research on the candidate's background to see if he or she has had any significant involvement in the community. They can talk to family members and friends to see if they can find any other evidence that they have interacted with the candidate. Students can also check with local political organizations and news sources to get some information on the candidate.There are two basic ways to research a candidate's political philosophy. The first is to take a long look at a candidate and the second is to read the candidate's bio. There are a number of books that can be consulted for biographical information about a candidate. In addition, there are various online sources where one can consult on the candidate.Writing an extended essay in political science can be challenging for students who do not know a lot about politics. The first step in writing an extended essay in political science is to get a general idea of what the topic is. After that, the students need to choose a topic that they feel will help them in their research.Students may also want to get some advice from fellow students or teachers before they choose the topic. They should make sure that the topic is relevant to the subject. They should also decide if the topic will be interesting to the readers. A good question that students can ask themselves is whether the chosen topic will advance the student's career goals.

Compared to the original Daniell Cell Essay Example

Compared to the original Daniell Cell Essay Example Compared to the original Daniell Cell Paper Compared to the original Daniell Cell Paper By completing and testing this hypothesis our group believes that it will factor in the aim of increasing the voltage and current of our Daniell Cell. Hypothesis 2 According to the Standard Reduction Potentials for Half-Reactions table, our group hypothesises that by changing the half cells so that their E0 values are a greater distance apart that the voltage and current will show an increase and improve the Daniell Cell. The general make up of a Daniell Cell is two half cells, one with copper metal (Cu) and the other cell using zinc metal (Zn). The electrolyte then is both sulfates of each metal, CuSO4 and ZnSO4 making up the Cell. According to the Standard Reduction Potentials for Half-Reductions (SRPHR), Copper and Zinc is a good pair since Copper is a fairly strong oxidizing agent and Zinc is a very good reducing agent which gives a high voltage between these two half cells. Corrosion Doctors, 2006 The group has decided in changing one of these half cells to a better oxidizing agent or a reducing agent the voltage of our cell will increase and therefore support our hypothesis. Since this is a school experiment, it is very hard to access the best oxidizing agents, which has left us with Potassium Permanganate (KMnO4) as our best oxidizer and magnesium (Mg2+) as our best reducing agent. When both ionic concentrations (the electrolyte) are at 1M and the room temperature is at 25oC you can calculate the voltage of what two half cells would be by using the given E0 value. Copper has an E0 of +0. 34 volt and Zinc has an E0 of -0. 76 volt and you subtract the oxidizer from the reducing agent which gives 1. 10 V (volts). The calculations for the magnesium and potassium permanganate are as follows, potassium permanganate E0 value is 1. 52 and the magnesium E0 value is -2. 37 which gives 3. 89 volts. Under these conditions the voltage should increase from 1. 10 volts to 3. 89 volts, in which will support our second hypothesis. Hypothesis 3 After extensive research into different forms of salt bridges, our group believes that in using the porous pot salt bridge the decrease in resistance provided by the pot will increase the voltage and current readings of the original Daniell Cell. A salt bridge, in chemistry, is a device used to connect the oxidation and reduction half-cells of an electrochemical cell. It is also apart of the internal circuit of the cell with the external circuit being the wire that connects the anode to the cathode. Salt bridges usually comes in two types: glass tube and filter paper with other portable options still available. One type of salt bridges consists of U-shaped glass tubes filled with a relatively inert electrolyte, usually potassium nitrate. The conductivity of the glass tube bridges depends mostly on the concentration of the electrolyte solution. The other type of salt bridges consists of a filter paper, also soaked with a relatively inert electrolyte, usually potassium nitrate because it is chemically inert. Conductivity of this kind of salt bridges depends on a number of factors: the concentration of the electrolyte solution, the texture of the filter paper and the absorbing ability of the filter paper. Generally smoother texture and higher absorbency equates to higher conductivity. A porous pot or other porous barrier between the two half-cells may be used instead of a salt bridge; they give a much higher current flow since the resistance is much less which is ideal for this investigation. Chemistry Virtual Textbook, 2006 In the Daniell Cell the porous pot cell consists of a central zinc anode dipping into a porous pot containing the zinc sulfate solution. The porous pot is, in turn, immersed in a solution of copper sulfate contained in a large beaker, which acts as the cells cathode. The use of a porous barrier prevents the copper ions in the copper sulfate solution from reaching the zinc anode and undergoing reduction. This would render the cell ineffective by bringing the battery to equilibrium. Our group has hypothesised that using the Porous Pot as the salt bridge will bring upon an increase in voltage and current therefore making a Better Battery. Balanced Chemical Equations and E0 values Zn2+ (aq) + 2e- Zn(s) E0 = -0. 76 V Cu2+ (aq) + 2e- Cu(s) E0 = 0. 34 V Zn(s) Zn2+ (aq) + 2e- Cu2+ (aq) + 2e- Cu(s). Zn(s) + Cu2+ (aq) Zn2+ (aq) + Cu(s) E0C = E0ox + E0red = 0. 76 + 0. 34 E0C = 1. 10 V Mg2+ (aq) + 2e- Mg(s) E0 = -2. 37 V Cu2+ (aq) + 2e- Cu(s) E0 = 0. 34 V Mg(s) Mg2+ (aq) + 2e- Cu2+ (aq) + 2e- Cu(s) Mg(s) + Cu2+ (aq) Mg2+ (aq) + Cu(s) E0C = E0ox + E0red = 2. 37 + 0. 34 E0C = 2. 71 V 5 Mg2+ (aq) + 10e- 5 Mg(s) E0 = -2. 37 V 2 MnO4- (aq) + 16 H+ + 10e- 2 Mn2+ + 8 H20 (l) E0 = 1. 52 5 Mg(s) 5 Mg2+ (aq) + 10e- 2 MnO4- (aq) + 16 H+ + 10e- 2 Mn2+ + 8 H20 (l) 5 Mg(s) + 2 MnO4-(aq) + 16 H+ 5 Mg2+ (aq) + 2 Mn2+ + 8H2O (l) E0C = E0ox + E0red= 2. 37 + 1. 52 E0C = 3. 89 Method Daniell Cell 1. Using two beakers place them close together and fill the beakers half way with the chosen electrolytes. 2. Place the Copper and Zinc metals in their respective salt solutions which are both 0. 1 M in concentration 3. Connect the wires to each electrode (metal) and connect the wires though a voltmeter/ammeter 4. Saturate the salt bridge (filter paper) with Potassium Nitrate and insert each end into both half-cell solutions. 5. Record Results for both current and voltage Hypothesis One 1. Setup the original Daniell Cell 2. After setting up and functioning the original Daniell Cell, change the concentration of the CuSO4 solution to 0. 5M. 3. Record the results shown on the voltmeter and ammeter 4. After this, change the concentration of the CuSO4 solution to 1M 5. Record the results shown on the voltmeter and ammeter. 6. Repeat this with the zinc half cell, by changing the copper half cell back to 0. 1M and increasing the zinc sulfate to 0. 5M then 1M. 7. Record the results of the voltage and current for these two experiments. Hypothesis Two (A) 1. Place two beakers side by side, filling them up half way with MgSO4 0. 1M and CuSO4 0. 1M. 2. Place the metals in their respective salts (sulfate solutions) 3. Connect the wires to each metal and plug the ends into the ammeter/voltmeter. 4. Now that the external circuit is present, saturate the salt bridge (in this case, filter paper) with Potassium Nitrate (KNO3) solution and place into each half cell. 5. Turn on the voltmeter/ammeter and record results. Hypothesis Two (B) 1. Place two beakers side by side, filling them up half way with MgSO4 0. 1M and MnO4 0. 02M 2. Place the magnesium metal in its respective salt 3. Place an inert metal such as carbon in the MnSO4 solution 4. Connect the wires to each metal and plug the ends into the ammeter/voltmeter 5. Now that the external circuit is present, saturate the salt bridge (in this case, filter paper) with Potassium Nitrate (KNO3) solution and place into each half cell. 6. Turn on the voltmeter/ammeter and record results. Hypothesis Three 1. Using a larger beaker, fill with the Cathode (Copper) electrolyte to around 1/2 full 2. Place the Porous Pot (which has been soaked in KNO3) in to the beaker and pour the other electrolyte (Zinc) inside. 3. Add the two electrodes to their distinguished salts. 4. Turn on the ammeter/voltmeter and record the results. Super Cell 1. Repeat steps 1, 2 and 3 in hypothesis three. 2. Instead of using Copper and Zinc half cells, use MnO4 (Potassium Permanganate) and MgSO4 (Magnesium) with MgSO4 being the anode. 3. The concentrations for each half cells are as follows; KMnO4 0. 02M and MgSO4 0. 1M 4. Use an ammeter/voltmeter to receive the final data for the investigation. Results Tables Hypothesis One: In reference to the Nernst Equation and Le Chi telier principle, our group believes that by having increased concentration in the cathode and a reduced concentration in the anode in each electrolyte will cause the voltage and current readings to increase and improve the Daniell Cell. Voltage (V) Trial ZnSO4 0. 1M Avg % Dif ZnSO4 0. 5M Avg % Dif ZnSO4 1M Avg % Dif CuSO4 0. 1M 0. 98 0. 95 0. 99 0. 97 0. 97 0. 98 0. 97 0. 97 0 0. 96 0. 97 0. 96 0. 96 -1. 03 CuSO4 0. 5M 1. 05 1. 02 1. 04 1. 04 7. 22 Â  CuSO4 1M 1. 15 1. 09 1. 10 1. 11 14. 4 Current (mA) Trial ZnSO4 0. 1M Avg % Dif ZnSO4 0. 5M Avg % Dif ZnSO4 1M Avg % Dif CuSO4 0. 1M 0. 20 0. 22 0. 25 0. 22 0. 22 0. 22 0. 24 0. 22 0 0. 21 0. 23 0. 26 0. 23 4. 55 CuSO4 0. 5M 0. 33 0. 44 0. 38 0. 37 68. 2 CuSO4 1M 0. 45 0. 56 0. 49 0. 50 127 Hypothesis Two: According to the Standard Reduction Potentials for Half-Reactions table, our group hypothesises that by changing the half cells so that their E0 values are a greater distance apart that the voltage and current will show an increase and improve the Daniell Cell. Voltage (V) Trial Zn(s) | Zn2+(aq) Avg % Dif Mg(s) | Mg2+(aq) Avg % Dif Cu(s) | Cu2+(aq) 0. 98 0. 95 0. 99 0. 97 1. 71 1. 82 1. 75 1. 76 83. 33 MnO4- | Mn2+ 2. 76 2. 86 2. 89 2. 84 192. 78 Current (mA) Trial Zn(s) | Zn2+(aq) Avg % Dif Mg(s) | Mg2+(aq) Avg % Dif Cu(s) | Cu2+(aq) 0. 20 0. 22 0. 25 0. 22 0. 32 0. 35 0. 34 0. 34 54. 54 MnO4- | Mn2+ 0. 59 0. 55 0. 58 0. 57 159. 1 Hypothesis Three: After extensive research into different forms of salt bridges, our group believes that in using the porous pot salt bridge the decrease in resistance provided by the pot will increase the voltage and current readings of the original Daniell Cell. Trial Voltage Avg % Dif Current Avg/ % Dif Daniell Cell 0. 98 0. 95 0. 99 0. 97 0. 20 0. 22 0. 25 0. 22 Porous Pot 1. 07 1. 08 1. 09 1. 08 11. 34 27 28 25 27 12172 Safety During the investigation the group used five different types of electrolytes for the extent of the experiment. These five solutions were Zinc Sulfate, Copper Sulfate, Potassium Nitrate, Potassium Permanganate and Magnesium Sulfate. These five solutions yielded the property that meant they could be dissolved into water with Zinc, Potassium and Magnesium all forming a clear colour. Copper Sulfate forms a blue solution, whereas Potassium Permanganate forms a dark purple solution. Throughout the duration of the investigation students must wear safety glasses along with a lab coat to protect their skin from any contact with the solutions. Keep the experimental area clear of books and other items that may cause an incidence of spilling or breaking equipment. In an emergency situation, such as contact with the eyes and skin, the patient must flush and wash away the solution for fifteen minutes and remove all contaminated clothing. If large amounts of any of these solutions are ingested do not induce vomiting and call for a physician immediately. Conclusion and Discussion In relation to the first hypothesis the results have supported what has been stated. From an in depth study of both the Nernst and Le Chatelier principles the hypothesis was made that by changing the concentration in the cathode and keeping the anode at its lowest concentration will show an increase in current compared to the original Daniell Cell. The average of the Daniell Cells voltage and current was 0. 97 volts and 0.22 mA, then the concentration in the cathode and anode were increased and decreased giving positive results. When our hypothesis was tested the current, as expected, increased vastly going from an average of 0. 22 0. 50 mA by just changing the concentration. As well as the current the voltage also increased slightly going from 0. 97 1. 11 volts. This can be explained by using Ohms Law which is: which can be said as; when increasing I (current) as long as the resistance stays the same the voltage is also going to increase. The second hypothesis was once again supported by encouraging results. In this case both the cathode and anode were getting changed at different times in hoping finding two half cells that gave the best voltage reading. The anode was changed first and by doing this the group achieved an improved reading, to complete the hypothesis the cathode was then changed which meant the new battery was using the two half cells that were the furthest away from each other that could be obtained in classroom conditions. The Daniell Cells starting voltage was 0. 97 volts and when using Carbon + KMnO4 0. 02M as the cathode and Copper + CuSO4 0. 1M as the anode the reading we received was 2. 84 V which was a much better results to the original Cell. Le Chateliers Principle can be used to explain the decrease in voltage (compared to the redox table) in the results involving these two half cells. Since the concentration in the cathode is lower in contrast to the anode the shift in equilibrium is towards the anode which then causes less of the solution used giving a lower voltage. The current was increased by 159. 1 % which then can be clarified by Ohms Law which says that when increasing voltage the current will also increase when the resistance is kept at a constant. The third and final hypothesis was in relation to the changing of the salt bridge which was hoping to bring about a change in the current flow. The group only tested one other type of salt bridge due to time constraints which proved very effective. The porous pot was a new type of salt bridge which caused the internal circuit to be much more efficient and also make the battery portable. The current reading given by using the porous pot salt bridge was far better then the group expected, going from 0. 22 mA 27 mA (12172 % increase) which was a very pleasing result firmly supporting our hypothesis. The voltage also showed an improvement of over 11 % which shows strong support again to our hypothesis. Therefore our Super Cell was able to be formed by observing these result tables. Since the aim of this investigation was to find the best battery with the most current and voltage these changes must be made. The two half cells have to be as far away as possible on the redox table to cause the highest E0 value or voltage. The salt bridge that must be used is the porous pot as it provides a very high current reading and causes the battery to be more realistic as it will be portable. The last change is that the cathode must have the highest concentration for an extra increase in current. This factor was not testable for our super cell as the only concentration for the MnO4 was 0. 02 M Our Super Cell is then as follows Mg(s) + MgSO4 (0. 1M) MnO4 (0. 02M) + C(s) Using Porous Pot soaked in KNO3 Voltage = 3. 0740. 001 V (216. 91% difference) Current = 1191 mA (53,990% difference) These results show the vast improvement of the new Super Cell compared to the original Daniell Cell. The aim has therefore been attended to and completed and all three hypotheses have been supported with compatible results. Evaluation Although the results received were very positive and back up all hypotheses there were many limitations and errors that could have been taken care of in the future. The external circuits or the wires connecting each half cell almost all had rust on them which acts as a resistance causing a reduced voltage and current. The rust was also not consistent on each set of wires, which meant when the group used different wires the voltage and current readings differed each time. The volt and ammeters were very inaccurate at times and most of the time not giving a current reading which meant there was less time to carefully finish each experiment which then caused more inaccuracy in the results. Another error which occurred due to equipment, which was unfortunately unavoidable, was each of the solutions used. After each reading was taken we were to pour the solutions back into their containers. The solutions may have been contaminated whilst the cell was operating and as the solution was then poured back into the original container the contamination spread. This would eventually decrease the concentration of electrolyte and as such change the data, decreasing the voltage and current. To fix this error, the solutions should not be poured back into the containers again. Another error was the lack of trials within the experiment. Due to time constraints we complete the desired number of trials for each hypothesis. It is desirable to have as many tests as possible, one trial to establish the basis while the others are trying to be as accurate as possible. By not having a complete number of trials we limited the results that have been found. If we were able to complete more trials, we would have been able to have a fairer and more accurate result. We would be able to overcome this by having a longer time to conduct our trials. This would have given more time to be more precise with the work that was completed. A different filter paper salt bridge should have been used each time testing, since when used once the paper soaks up the electrolytes of each half cell which becomes inexact next time its put into use. The filter paper also dries out after a while which reduces the current of the cell, making the experiment more inaccurate as time progresses. The group was only provided with 0. 02 M KMnO4 which then forced us to not put one of our hypotheses into use in creating our Super Cell which was having the concentration in the anode lower then the concentration in the cathode. Another error was the use of Carbon as the inert metal in the KMnO4 solution. Since Carbon is not completely inert the current was unable to flow, free of resistance from the Carbon, therefore reducing the current reading of the cell. The magnesium metal was also an issue as it tends to oxidise instantly with oxygen causing an oxide layer on the metal and also reducing the current reading of the cell. Further investigation could possibly be to test many other hypotheses such as the surface area of the metals to make our results more thorough. More electrodes could have been added to the half-cells. This would create a cell with a larger surface area in which the reactions would take place. This would then allow a larger current and voltage as there would have been more electrons to create a higher current. There would have been a larger amount of area in which the electrons would be able to be taken from. The larger the surface area, more electrons are able to be attracted to the electrode, consequently producing more voltage and current. Russian Chemical Views, 2009 Cutting edge battery research and development have allowed improvements such as changing the metals in the half cell to still make it more efficient eg. Lithium. Lithium-ion batteries are incredibly popular these days. Theyre so common because, pound for pound, theyre some of the most energetic rechargeable batteries available. Lithium batteries are disposable batteries that have lithium metal or lithium compounds as an anode. The term lithium battery comprises of many types of cathodes and electrolytes. The most common type of lithium cell used in consumer applications uses metallic lithium as anode and manganese dioxide as cathode, with a salt of lithium dissolved in an organic solvent. (Brain, 2008) Improvements such as the electrodes being further apart in the redox table, eg lithium and silver would have been able to create a higher voltage. Again this is a problem because it is very unsafe as lithium is so reactive that it will react with the oxygen in the air. Therefore it may not be possible to create a Daniell Cell out of those materials. Further research into looking into ways of creating more reactive yet stable electrodes we could create a cell which supports the claims of the Redox table but is also able to be completed within a class room environment. Bibliography All about electrochemistry. Chemistry Virtual Textbook. 2006 Chemistry 1. (Feb. 2009. ) chem1. com/acad/webtext/elchem/Figure 1: Chemistry Pictures. Daniell Cell. 2006 Electrochemistry Principles. (Feb. 2009. ) chemistrypictures. org/d/175-2/electrochemistry. jpg Electrochemical Cell. 2006 Corrosion Doctors. (Feb. 2009. ) http://corrosion-doctors. org/Electrochem/Cell. htm Electrochemical Cells. Online Resource Centre. 2004 Oxford University. (Feb. 2009. ) http://hyperphysics. phyastr. gsu. edu/hbase/chemical/electrochem. html#c2 Electrochemical Determination of Surface Area of Metals. IOP Electronic Journals. 2009. Russian Chemical Views. Mar. 2009. iop. org/EJ/abstract/0036-021X/47/5/R02 Electrochemical Reactions. Electrochemistry. 2007 Bodner Research Web. (Feb. 2009. ) http://chemed. chem. purdue. edu/genchem/topicreview/bp/ch20/electro. php Figure 2: How voltage and current relate? 2005 Ohms Law. All about circuits. (Feb. 2009. ) allaboutcircuits. com/vol_1/chpt_2/1. html LE CHATELIERS PRINCIPLE. Concentration Equilibrium. 2003 Chemistry Guide. (Feb. 2009. ) chemguide. co. uk/physical/equilibria/lechatelier. html Lower, Stephen. The Nernst Equation. All about Electrochemistry. 2005. Chemistry 1. Feb. 2009. chem1. com/acad/webtext/elchem/ec4. html Nernst Equation. Electric Work. Science Waterloo. 2008 (Feb. 2009. ) science. uwaterloo. ca/~cchieh/cact/c123/nernsteq. html Figure 3: The Nernst Equation. Hermann Walther Nernst. 2004 Biol-Paisley. (Feb. 2009. ) biol. paisley. ac. uk/marco/enzyme_electrode/Chapter2/Nernst. htm Voltage and Current. Electrochemistry. 2004 Hyper chemistry. (Feb. 2009. ) chemlin. net/chemistry/electrochemistry. htm

Persuation Essay Example | Topics and Well Written Essays - 250 words

Persuation - Essay Example Instead, they take advantage of the fact that people will feel sorry for animals and thus be forced by their emotional situation to believe that indeed human beings have been mistreating animals (Quist 101). One of such images is that of the limping dog. To help in capturing the viewers’ emotions, the commercial uses vivid language to present the image of exactly what the animals go through in the hands of brutal human beings. An example of vivid language in the commercial is when Sarah McLachlan, one of the ASPCA supporters claims that animals that had been victims of violence are out there calling for help. Most of the words and phrases that used in the commercial are aimed at appealing to the viewers emotionally instead of intellectually. This is because the main aim of the commercial is to emotionally connect the viewers to whatever the animals might be going through in terms of brutality. A good example the use of emotional language is the phrase which says that, â€Å"for hundreds of others help came