Sunday, January 26, 2020
Iodometric Redox Titration of Vitamin C Tablets
Iodometric Redox Titration of Vitamin C Tablets Introduction Vitamin C is a vital component of a healthy diet which is why, like many others, my father takes vitamin C supplements. However, I noticed that the vitamin C tablets he takes expired in January 2009. These tablets were bought in the USA and developed a light amber tint. Therefore, I wondered whether this would mean that over time, the concentration of vitamin C has decreased. Hence, I researched a scientific method to determine the concentration of vitamin C in order to see whether my father should continue using the expired tablets or rather buy new ones. Chemically known as ascorbic acid, vitamin C is an organic compound containing of six carbon atoms, of which two can be readily oxidized under aqueous acidic conditions or by air over a longer time period.The method used to measure the concentration of vitamin C is called a reduction oxidation, known as redox, titration. Ascorbic acid reacts with iodine (I2) to create dehydroascorbic acid (C6H8O6) under acidic aqueous conditions:C6H8O6 (aq) + I2 (aq) à ¯Ã†â€™Ã‚ C6H6O6 (aq) + 2 I(aq) + 2 H+(aq) However, as iodine I2 is not very soluble in water, a complex created by aqueous iodine I2 (aq) and aqueous iodide anion I(aq) through the following reaction must be used.I2 (aq) + I(aq) à ¯Ã†â€™Ã‚ I3(aq) I3 is known as triiodide, which is much more soluble in water than iodine. The method used to create the triiodide is the reaction of aqueous iodate IO3(aq) with aqueous iodide I(aq) under acidic aqueous conditions as shown below.Reaction 1:IO3(aq) + 8 I(aq) + 6 H+(aq) à ¯Ã†â€™Ã‚ 3 I3(aq) + 3 H2O (l)              The reaction of water soluble starch, being a white solution, with triiodide gives a dark blue complex. This change of colour shows the end of the redox titration.The redox titration is using the reaction of aqueous triiodide I3 (aq) with aqueous ascorbic acid C6H8O6 (aq) to form aqueous dehydroascorbic acid C6H6O6 (aq) and aqueous iodide I(aq ) under acidic aqueous conditions.Reaction 2: C6H8O6 (aq) + I3 (aq) à ¯Ã†â€™Ã‚ C6H6O6 (aq) + 3 I(aq) + 2 H+(aq)                          The method used is an indirect titration, which means it measures the amount of triiodide remaining in the solution after having reacted with the ascorbic acid. Therefore an excess of aqueous triiodide I3 (aq) is needed.The excess aqueous triiodide I3 (aq) is reduced by aqueous thiosulfate S2O32- (aq) to create aqueous iodide I(aq) and aqueous tetrathionate S4O62- (aq) as shown below.Reaction 3:I3 (aq) + 2 S2O32- (aq) à ¯Ã†â€™Ã‚ 3 I (aq) + S4O62- (aq)                          As soon as all the triiodide is reduced to iodide, the colour changes from dark blue (the triiodide starch complex is dark blue) to white. The oxidation of ascorbic acid is a 1:1 reaction, meaning 1 mol of ascor bic acid requires 1 mol of triiodide to form 1 mol of dehydroascorbic acid, whereas the oxidation of thiosulfate is a 1:2 reaction, meaning 2 mol of thiosulfate can be oxidized to 1 mol tetrathionate by 1 mol of triiodide, all under acidic conditions in water. Knowing this one can calculate the amount of vitamin C in various tablets as long as all of them are readily soluble in water, meaning, for example, not coated.(CH 212 Quantitative Analysis. 1-2)Research Question What is the effect of the age of vitamin C tablets, expressed by the number of months elapsed after the expiry date, on the concentration in percentage weight of vitamin C in said tablets? Variables Variable Unit Range Method of measurement Independent:Number of months after expiry date of vitamin C Date withmonth, year 01/2009 = 92 months 09/2014 = 24 months 07/2015 = 14 months 04/2018 =  0 months The expiration date of the vitamin C tablet / sachet is written on the outer packaging Dependent: Concentration of vitamin C % weight 0 100% Content of vitamin C in mg per tablet is written on the outer packaging and measured through titration Controlled Variables Unit Possible effect(s) on results Method for control Number of tablets / sachets n/a Wrong weight of vitamin C Counting tablets / sachets Concentration of Sodium thiosulfate (Na2S2O3 (aq))Potassium iodate (KIO3 (aq)) mol/lmol/l Wrong concentration of vitamin C Titration with (KIO3 (aq)) Analytical scale Concentration of Starch Sodium carbonate Sulphuric acid g/l g/l mol/l No significant impact on dependent variable Analytical scale Analytical scale 50 ml measuring cylinder Concentration of Potassium iodide (KI (aq)) mol/l Wrong concentration of triiodide solution Analytical scale Materials 1 g of soluble starch 8 M (mol/l) sulfuric acid (H2SO4) pure Potassium iodide (KI), 95%, pure, DAB Potassium iodate (KIO3), p. A. EMSURE ® ACS, ISO, Ph Eurpure, DAB Vitamin C (ascorbic acid (C6H8O6))tablets or sachets (it is recommended to use colourless dissolvable products, otherwise the colour change will be difficult to see) Sodium thiosulfate pentahydrate (Na2S2O3 à ¯Ã¢â‚¬Å¡Ã‚ · 5H2O), 99,5%, pure, DAB Sodium carbonate (Na2CO3) 99,5%, pure, DAB Distilled water (H2O) Apparatus One 3 ml  ± 0,01 ml measuring pipette Two 250 ml  ± 5% beakers and two 500 ml  ± 5% beakers One 50 ml  ± 0,08 ml and one 100 ml  ± 0,1 ml measuring cylinder Two 500 ml  ± 0,2 ml volumetric flasks with a cork Three 250 ml Erlenmeyer flasks to be used for the titrations One 50 ml  ± 0,1 ml burette with stand and clamp for burette Two funnels, each with a diameter of 9,5 cm It is necessary to clean and rinse all glassware with distilled water beforehand to avoid impurities and contamination of solution used. One electric scale set in grams and preferably to four decimal places g  ± 0,1 mg to allow for maximum accuracy (available scale had two decimal places g  ± 10 mg) One magnetic stirrer, one stirring rod and a mortar with a pestle Small spoons, scalpels and cups, in total 5 of each Rubber gloves and safety glasses as the reactants used can irritate skin and eyes Method Preparation of starch indicator Fill a 250 ml beaker with 100 ml of distilled water, measured with a 50 ml cylinder. Weigh 1 g of soluble starch using the scale and a spoon. Add the starch to the beaker. Using the stirring rod, stir until dissolved. Every day a new solution should be made. Preparation of sodium thiosulfate Use a 100 ml measuring cylinder to fill 450 ml of distilled water into a 500 ml beaker. Weigh 0,05 g of Na2CO3 using the scale, a spoon, and a cup and add to beaker. Weigh 8,7 g of Na2S2O3 à ¯Ã¢â‚¬Å¡Ã‚ · 5H2O using the scale, a spoon, and a separate, equally clean small cup. Add to the same beaker. Dissolve the chemicals compounds through swirling the beaker. Once dissolved, pour the solution into a clean 500 ml volumetric flask and add distilled water up to exactly 500 ml. Seal it tightly with the cork. Label the solution as sodium thiosulfate. Keep the flask closed when not in use. Preparation of standard iodate solution Use a 100 ml measuring cylinder to fill 450 ml of distilled water into a 500 ml beaker. Weigh 1,01 g of KIO3 in a small, clean cup using the scale and a clean spoon. Pour the KIO3 into the 450 ml of distilled water. Swirl the beaker until the potassium iodate has completely dissolved. Once dissolved, pour the solution into a clean 500 ml volumetric flask and add distilled water up to exactly 500 ml. Seal it tightly with the cork. Label the solution as potassium iodate. Keep the flask closed when not in use. Standardising the sodium thiosulfate solution Set up the stand and clamp for the 50 ml burette. Fill the closed 50 ml burette with the previously prepared sodium thiosulfate solution using a clean funnel. It is vital that the burette contains precisely 50 ml. Using a 50 ml measuring cylinder pour exactly 50 ml of the KIO3 solution into a clean 250 ml Erlenmeyer flask. Weigh 2 g of KI in a small cup using the scale and a spoon. Place the KI into the flask. Add 5 ml of 8 M H2SO4 into the flask using a 50 ml measuring cylinder. Place the 250 ml Erlenmeyer flask onto a magnetic stirrer and begin stirring it. This is to ensure that all the reactants in the solution have reacted to form the triiodide molecule. The solution should have a dark red colour due to the presence of triiodide. Titrate the solution with sodium thiosulfate until the solution has lost most of its red, i.e. a light shade of yellow appears. Using the 3 ml measuring pipette, add 2 ml of the starch indicator to the solution. The starch is only added shortly before the end point of the titration as prior to this, the triiodide starch complex locks onto the triiodide and thus the triiodide might not react with the sodium thiosulfate. Continue titrating the solution until the solution has become colourless. Record the amount of ml of sodium thiosulfate solution used. Repeat the titration three times in order to obtain reliable values, as this titration tells us the exact concentration of sodium thiosulfate, which allows us to determine the amount of triiodide. Titration of ascorbic acid Use a 50 ml measuring cylinder to fill 15 ml of 8 M H2SO4 into a clean 250 ml Erlenmeyer flask used for titration. Using a 100 ml measuring cylinder add 75 ml of distilled water. Grind vitamin C tablets separately and thoroughly with a mortar and pestle. Put them into the flask and stir until fully dissolved. If needed, for example if part of the tablet is not soluble anymore, filter the solution by using a funnel and filter paper. Carefully pour the solution into a clean 250 ml Erlenmeyer flask used for titration. Using a 50 ml measuring cylinder pour 50 ml of KIO3 solution into the 250 ml Erlenmeyer flask used for the titration. Weigh 2 g of KI in a small cup using the scale and a spoon. Place the KI into the 250 ml Erlenmeyer flask used for the titration. At this point, the solution should develop a dark shade of red due to the presence of triiodide. Swirl the flask to make sure the reaction between triiodide and ascorbic acid has been completed. Set up the stand and clamp for the 50 ml burette. Place the 250 ml Erlenmeyer flask used for the titration onto a magnetic stirrer, and begin stirring it. This ensures that the vitamin C has truly completely reacted. Fill the closed 50 ml burette with sodium thiosulfate solution using a clean funnel. Ensure that the burette was cleaned beforehand and remove any excess solution. Begin titrating the triiodide solution with sodium thiosulfate. It should start out being red due to the presence of access triiodide. When the solution changes to a pale yellow, add 2 ml of the starch indicator using a 3 ml measuring pipette. Similar to the previous titration, the starch might hold onto the triiodide and prevent it from reacting with sodium thiosulfate. Continue titrating the solution until it has become colourless. Due to various colourings of the tablets, this might be an off-shade of white. Denote this volume as the end point of the titration. Repeat steps 21-31 for all tablets and sachets available. Each sample of tablets or sachets should be titrated at least five times in order to calculate a representative amount of vitamin C contained in the tablets. It is important to note that the flask containing the vitamin C solution and the magnet of the magnetic stirrer must be washed before each trial to avoid impurities. (CH 212 Quantitative Analysis. 5-7) Safety Considerations Make sure that safety glasses and gloves are used during the experiment. Appropriate safety clothes must be worn, like laboratory coats with long sleeves. Content of solutions prepared need to be clearly marked with water proof pencils and locked away in laboratory cupboards. Any solution not used anymore needs to be placed it appropriate waste disposal units. Neutralise any acids before disposing of them. Raw DataTable 1 shows the overview of all the samples used in the iodometric redox titrations. Sample ReferenceNumber Expiry date Months till Sep. 2016 Number of tablets/ sachets used Weight of tablet/sachet gstated by manufacturer Vitamin C in mg per tablet/sachet stated by manufacturer Vitamin C USP tablet 1 Jan. 2009 92 11 No value given 500 Heiße Zitrone sachet 2 Sep. 2014 24 1 10 180 Vitamin C Arancia tablet 3 Jul. 2015 14 2à ¢Ã‹â€ â„ ¢4 = 8 4,5 90 Vitamin C Zitrone tablet 4 Apr. 2018 0 10 4 180 Table 1: Samples used in the titrationTable 2 shows the volume of sodium thiosulfate required to titrate 50 ml of potassium iodate. Titration 1 Titration 2 Titration 3 Volume in ml of sodium thiosulfate solution 39,0  ± 0,1 38,6  ± 0,1 38,6  ± 0,1 Table 2: Volume of sodium thiosulfate solution Note: As the percentage uncertainty of titration 1 0,25% and titration 1 and 2 is 0,26%, these uncertainty are not taken into account, as there is very little impact on the results. Table 3 shows the results of all titrations of the vitamin C samples. Sample Number Volume in ml of sodium thiosulfate solution required to titrate remaining triiodide ( ± 0,1) 1 > 50 4,6 3,1 3,9 3,6 3,7 3,4 3,4 3,3 3,6 3,8 2 17,4 3 16,5 19,2 15,3 14,2 4 13,4 14,3 13 13,8 12,4 15,3 14,4 10,6 12,5 11,2 Table 3: Volume of sodium thiosulfate solution in ml used in the titrations It was observed that the colour changed from dark blue to a pale yellow as the sample was titrated due to the reaction of triiodide with thiosulfate. Calculations and Processed Results In order to find the percentage of vitamin C in each sample, one must calculate the exact concentration of sodium thiosulfate used in all titrations. 8,7 g Na2S2O3 à ¯Ã¢â‚¬Å¡Ã‚ · 5H2O with molar mass 248,2 g/mol in 500 ml water = 0,070109 mol/l S2O32 Molar ratio of the oxidation of S2O32- is S2O32-:I3 = 2:1 38,73 ml of 0,070109 mol/l S2O32- = 0,002715 mol S2O32- are oxidized by 0,001358 mol I3 Molar ratio of the creation of I3 is IO3: I3 = 1:3 0,001358 mol I3 = 0,000453 mol IO3 in 50 ml = 0,009051 mol/l IO3 Exact concentration of KIO3 = 1,01 g KIO3/500 ml = 0,009439 mol/l IO3 ∠´ Exact concentration of S2O32- is higher by a factor of 0,009439/0,009051 = 1,042911∠´ Exact concentration = 0,070109 à ¢Ã‹â€ â„ ¢ 1,042911 = 0,073117 mol/l S2O32- Table 4 shows the volume and concentration of sodium thiosulfate used. Titration Number ml Na2S2O3used ( ± 0,1) ml Na2S2O3arithmetic average Theoretical concentration Na2S2O3 mol/l Experimental/Exact concentrationNa2S2O3 mol/l 1 39,00 38,73  ± 0,3 2 38,60 0,070109 0,073117 3 38,60 Table 4: Calculation of concentration of sodium thiosulfate Note: As the uncertainty of 38,73 ml  ± 0,3 gives a percentage uncertainty of 0,77%, this uncertainty are not taken into account, as there is very little impact on the results. In knowing both the precise concentration of sodium thiosulfate and the volume needed to titrate the remaining triiodide, one can determine the concentration of vitamin C in each sample as there is an excess of KIO3 present in each titration. Reaction 2: C6H8O6 (aq) + I3 (aq) à ¯Ã†â€™Ã‚ C6H6O6 (aq) + 3 I(aq) + 2 H+(aq) Molar ratio of I3:C6H8O6 = 1:1           Molar ratio of IO3:I3 = 1:3           Molar ratio of IO3:C6H8O6 = 1:3 ∠´ 50 ml 0,009439 mol/l KIO3 = 0,000472 mol IO3 = 3 times more moles of vitamin C∠´ 0,000472 à ¢Ã‹â€ â„ ¢ 3 = 0,001416 mol vitamin C = 249,4 mg vitamin C Only the first sample had a theoretical maximum content of 500 mg, which is more than the 50 ml of 0,009439 mol/l IO3 solution can oxidize, that means no triiodide should have been left over and therefore the blue starch triiodide complex should not have been formed. However, in each titration a blue colour was visible. Therefore, the method applied was valid for all other titrations, otherwise the weight of the sample should have been reduced. Reaction 3:I3 (aq) + 2 S2O32- (aq) à ¯Ã†â€™Ã‚ 3 I (aq) + S4O62- (aq) Molar ratio of I3: S2O32- = 1:2 The arithmetic average of 10 titrations of the first sample is 3,64 ml of 0,073117 mol/l S2O32- used to titrate the remaining I3. 3,64 ml of 0,073117 mol/l S2O32- = 0,000266 mol S2O32- are oxidized by 0,000133 mol I3. After the reaction of 50 ml of 0,009439 mol/l IO3 solution with the vitamin C sample 0,000133 mol I3 were left over. Molar ratio of IO3:I3 = 1:350 ml 0,009439 mol/l IO3= 0,000472 mol IO3 = 0,001416 mol I3 0,001416 mol I3 at the start of the reaction 0,000133 mol I3 found after the reaction = 0,001283 mol reacted with vitamin C Molar ratio of I3:C6H8O6 = 1:10,001283 mol I3 = 0,001283 mol C6H8O6 = 0,001283 mol à ¢Ã‹â€ â„ ¢ 176,1 g/mol = 225,9 mg vitamin C 500 mg vitamin C = 100% and 225,9 mg vitamin C = 45,19% active content. This method is applied to all results. Table 5 shows the results of titrating the four different vitamin C samples. Sample 0,073117 mol/l Na2S2O3 solution in ml used Tablets/ Sachet Vitamin C (mg) Vitamin C Age No. Arithmetic average/Number of titrations Standard deviationÃÆ' No. used in titration Written on packaging Found via titration % found via titration Months expired 1  3,64 / 10 0,41 1 500 226 45,19 92 2 17,40 / 1 1 180 137 76,30 24 3 16,30 / 4 2,15 2  90 144 80,24 14 4 13,09 / 10 1,39 1 180 165 91,72 0 Table 5: Calculated and measured results of titration of Vitamin C samplesMonths expired is the time elapsed between the expiry date and the month of the laboratory work in September 2016. The first titration of sample 1 (see table 3) was an outlier and not considered when calculating the arithmetic average and standard deviation. Only one sachet of sample 2 was available, thus not allowing to calculate average and standard deviation. Graph 1 shows the percentage of Vitamin C found and the age of the tablets and sachet used.Graph 1:Correlation of concentration of Vitamin C versus number of months expired Graph 2 shows that the reliabilty of the result depends on the number of titrations carried out. The variation of the results is two times standard deviation ( ± 2 ÃÆ'). Graph 2: Concentration of vitamin C and error bar of  ± 2 ÃÆ' (sample 2 was only titrated once, thus no standard deviation can be calculated) Assuming that the results are following a normal distribution, 95,4% of the titrations are within the  ± 2 ÃÆ' range as shown above. Thus, the results are accepted for sample 1, 3 and 4. Conclusion and EvaluationThe results show that the vitamin C content decreases over time. This is demonstrated in graph 1, as the slope is -0,048. The coefficient of determination is 0,989, which is close to 1 and therefore shows a strong linear correlation. This means the results clearly demonstrate that as the number of months expired increases, the concentration of vitamin C decreases. These findings are supported by research of the Applied Sciences Department at the Osun State Polytechnic in Iree, Nigeria, published in 2012. (Oyetade 22) High temperature, exposure to air and sunlight accelerate the oxidation of vitamin C. Thus, the oldest sample shows the highest reduction in percentage concentration of vitamin C with 45,19%, less than half. This means that my father should buy new vitamin supplements, and no longer use his old ones, which were sample 1. Strengths: The method of investigation delivers fast results, does not require expensive equipment, and works with chemicals th at are neither very toxic nor extremely harmful to the environment. A clear relationship between the variables was demonstrated and due to relatively low standard deviation, the results are accepted. Weaknesses: Potential errors were detected. Only one sachet of sample 2 was available, thus not meeting the minimum criteria of at least 3 titrations of each sample. It is also possible that not all the triiodide reacted with the sodium thiosulfate (see step 18 in methodology). In terms of method, the equipment used was not precise enough, causing possible systematic errors. Instead of a measuring cylinder a volumetric pipette should have been used as well as a high precision scale  ± 0,1 mg. Not all samples were easily soluble in water and produced a clear and colourless solution, thus the end of titration was difficult to notice, leading to inaccuracies. The thiosulfate and iodate solutions should not have been stored over a long time exposed to uncontrolled temperature and day ligh t. All titrations should either have been done in one day or the titrants should have been stored in a cool and dark place. Works Cited CH 212 Quantitative Analysis. Philadelphia: La Salle University, n.d. PDF Oyetade, O. A., G. O. Oyeleke, B. M. Adegoke, and A. O. Akintunde. Stability Studies on Ascorbic Acid (Vitamin C) From Different Sources. N.p.: IOSR Journal of Applied Chemistry (IOSR-JAC), Sept.-Oct. 2012. PDF.
Saturday, January 18, 2020
Ethical Dilemmas of an Attorney
Ethical Dilemma's of an Attorney Gina Boldt ADJ 235 March 22, 2013 John Ellison Ethical Dilemma's of an Attorney The three major ethical dilemmas faced by a defense attorney are client perjury, delivery of physical evidence and the disclosure of prior convictions (Boldt, 2013). They are bound to provide thieir client with courage and devotion (Pollock, 2012, 2010). This dilemma, at times, tries the attorneys personal morals and ethics, though, once again, the protection of the defendant overrules all. They must also refrain from taking any case that presents a conflict of interest with said client.Though there are times that plea bargaining is in the best interest of the defendant, this process can be misused as a conveinence, this would be an example of ethical conflict. In order to provide such a fierce and devoted defense, the attorney must not engage is such practices as pergury and corruption to aid a positive outcome for their client. Many of these obligations are quite similar and relate to both a prosecuting and defense attorney, such as confidentiality, attorney-client privelage, the handling of evidence and the responsibility of maintaining the safety of others.The ethical obligations of a prosecuting attorney is to seek truth and justice, However, this singular responsibility insures several ethical burdens. The duties of this position are to indict as many criminals as possible and maintain justice within our system. With this responsibility comes many opportunities to step into the unethical realm of practice in order to secure prosecution. The obligation of this profession, once again, can test an individuals strength and inner morals. The key is to maintian honesty and intergrity and to set aside all personal beliefs, though this may not be the easiest, it is the only way to ensure justice.
Friday, January 10, 2020
Find Out Who is Concerned About Essay on Anorexia and Why You Should Pay Attention
Find Out Who is Concerned About Essay on Anorexia and Why You Should Pay Attention There's no very clear cause of eating disorders, but they might be a consequence of several things. Anorexia is an illness, so there's not anything wrong with seeing a doctor to recuperate from it. Extreme weight reduction in people with anorexia nervosa can result in dangerous health issues and even death. The different forms of eating disorder. The Importance of Essay on Anorexia Treating bulimia and anorexia can be challenging and, in some instances, impossible, and it seems that the age of onset and diagnosis is crucial. While anorexia athletica isn't the exact disorder as anorexia nervosa, it can have a number of the exact long-term effects if it goes on for a protracted timeframe. People with Anorexia are inclined to be too great to be true. One is anorexia and the other one is bulimia. Distress Unfortunately, there's no single cause of Anorexia Nervosa making it tough to target the main reason why someone may suffer from them. A victim doesn't need to appear underweight or even average to endure any indications or symptoms of anorexia. Despite the fact that a specific source of anorexia has non been found yet, we can at least see manners in which it could be possible to forestall considerable instances of anorexia. Learn about symptoms, also referred to as anorexia learn more on the subject of anorexia precisely what the condition. Whispered Essay on Anorexia Secrets Nevertheless, your essay ought to be well-grounded, and all of your ideas, in addition to statements about anorexia that you would like to argue, ought to be reasonable and relevant. Keep in mind that a very good argumentative essay on anorexia is impossible without a good foundation in the sort of some appropriate evidence. An essay on anorexia addresses the overall topic of under-eating. Need someone to reassess my essay. Overall the whole article is everynhere. Any information necessary to supplement your ideas is included so far as the amount of the short article will permit. As it was mentioned, it is dependent upon the aim of your writing. Naturally, the central goal of your upcoming essay is going to be about the anorexia, but your task is going to be to discuss it from a specific angle. The Argument About Essay on Anorexia The bodily changes which often accompany anorexia usually need medical attention too. It can be a root cause of many problems and raise a number of meaningful questions. The symptoms include extreme weight reduction, together with an intense fear of gaining weight, while there are numerous unique theories on the reason. The most typical symptom is the refusal to keep up a healthful body weight. The outside look of a person with anorexia doesn't dictate the quantity of physical and mental turmoil they are enduring. Therefore, the commitment to diet and weight control is regarded as an effort to set a firm awareness of identity (Bhanji, 1999). There's nothing beautiful about this disease, there isn't a thing good about this obsession and ultimately, the man or woman is never pleased with their progress anyway. The very low self-esteem that accompanies the mentality of having an eating disorder, plays a substantial part in the way they see other men and women. Top Choices of Essay on Anorexia Children have to be showed love and caring to be able to derive the correct degrees of self-pride. An increasing number of teenagers have become anorexic and bulimic and it's not just affecting girls but boys have started to appear and say they've got an eating disorder. In spite of treatment, some people today die. Parents must also teach their children the worth of healthful eating, not send the message that being thin is vital. Top Choices of Essay on Anorexia For instance, you could question the very definition of anorexia for a disease. Also, anorexia was linked to the potential cause of excessive physical activity. There's not simply mental issues that come from anorexia, but there are several bodily troubles. As weight loss is normal to numerous different illnesses, diagnosing anorexia and bulimia can be hard sometimes. Kidney failure is brought on by a the absence of vitimans that the kidneys will need to function. The long-term prognosis for the two disorders varies. It's a disease and it does not ever goes away. Problems during pregnancy or following birth have been related to the evolution of an eating disorder. A person who has begun to observe the doctor impacts of the illness in their body may want to get hospitalized. All individuals are almost always interested to keep up a psychological disorder. Even more severe problems result if there's still no therapy. A vast array of factors are considered important in the start of eating disorders.
Wednesday, January 1, 2020
Leadership The Democratic Leadership Strategy - 839 Words
Introduction Leadership has many styles and it means different things to different people. I like the definition of leadership as setting the direction and as leaders helping themselves and others to do the right thing to move forward. To do this they create an inspiring vision and motivate others to reach that vision. I have always tried to accomplish this when placed in a leadership role, and it should always be strived for. The leadership strategy that I have seen work first hand and the strategy that I believe has the most impact is the democratic leadership strategy. From a leader’s perspective, it forges a consensus through participation and allows the group to have a voice. It allows the group to ask â€Å"What do you think†? This strategy allows group collaboration through communication as a team effort; no one person has complete and total control. I feel this gives the team a purpose and when everyone has input the team is able to develop comprehensive ideas. 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Autocratic leadership may be explained as â€Å"a leadership style where the managerRead MoreI Work / Volunteer As A Full Time Substitute Art Teacher Essay1068 Words  | 5 Pagespopulation growth in the Crested Butte area, to provide relief to the other administrative staff and to provide leadership to the elementary wing of the school. Introduction Kurt Lewin performed leadership decision experiments with school-aged children in 1939 as a result he identified three distinctive styles of leadership and decision making. Each of the three styles (Autocratic, Democratic and Laissez-Faire) possesses pros and cons related to inclusion. This essay will compare which of the Lewin stylesRead MoreLeadership, Trust, And Trust Essay1513 Words  | 7 Pagesbelieve in strategy, trust in management decisions, and trust in their work. Once people believe in management choice, there will be enthusiasm inside an organisation. Such an environment helps the organisation growing or flourish. A doing well leaders create a surroundings in cooperation inside and outside the organisation. (Subir chowdbhury management, 21c financial times prentice hall (2000) The world hopeful in political leaders but unfortunately, a few of live up to the leadership main beliefs
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