How Divorces Affect Children Essays - Parenting, Family Law, Family

How Divorces Affect Children How Divorces Affect Children In our society families are divided everyday. The circumstances vary, but they still cause traumatic behavior towards those who are irate about their families separating. It seems to be a delimma for parents that no longer acquire each others company to be subjective about their separation, but what if children are involved. Parents have a tendency to make choices about their marriage with animosity and revulsion towards one another, but what about the siblings. What did they do? Therefore, it is an inequity for parents to divorce with children, because their kids lives will be impacted tremendously. A separated mother and father has a dissatisfying affect on children. It is very hard for a child, who has been raised by both parents; to one day only have majority access to one parent. This is a situation through which kids develop inaccurate thoughts as to why their parents are not together. Blame sometimes corrupts the childs thoughts and eventually the child perceives he/she may be the reason their parents separated. Children are left in the dark numerous times. Children develop revulsion towards the parent whom they feel has caused this terrible situation. A constant question, Why? Their parents would not want to be together anymore. The child now acts with an attitude around the parents. In a rebellious way the child deliberately commits disobedience. Being that they are already demoralized the child feels no remorse in acting out of discontent. This becomes even worst when there is more than one child. Two or more children in this situation may wonder will they have to separate also. And in some cases children do separate parents. Besides the negativity between the parents the children can be influenced by the animosity generated between the parents. Now they to perceive thoughts of one another, wondering who will get which parent. It is blatant that in situations of the parents having children. The boy goes with the father and the daughter goes with the mother. Eventually the children will take sides and this corrupts their relationship causing division amongst each other. Although parents have their differences and splitting up is the best choice they should still be aware of how it will effect the children/child. Children are the most vulnerable in situations like divorce cases. Children have little affect in their parents decision to break up. In conclusion, in marriages people must learn to avoid conflict and appreciate whom they have decided to spend the rest of their life with. A divorce causes too much stress and heartache on a child thats why it should be forbidden unless reasons to separate are of the laws of the Bible. How Divorces Affect Children In our society families are divided everyday. The circumstances vary, but they still cause traumatic behavior towards those who are irate about their families separating. It seems to be a delimma for parents that no longer acquire each others company to be subjective about their separation, but what if children are involved. Parents have a tendency to make choices about their marriage with animosity and revulsion towards one another, but what about the siblings. What did they do? Therefore, it is an inequity for parents to divorce with children, because their kids lives will be impacted tremendously. A separated mother and father has a dissatisfying affect on children. It is very hard for a child, who has been raised by both parents; to one day only have majority access to one parent. This is a situation through which kids develop inaccurate thoughts as to why their parents are not together. Blame sometimes corrupts the childs thoughts and eventually the child perceives he/she may be the reason their parents separated. Children are left in the dark numerous times. Children develop revulsion towards the parent whom they feel has caused this terrible situation. A constant question, Why? Their parents would not want to be together anymore. The child now acts with an attitude around the parents. In a rebellious way the child deliberately commits disobedience. Being that they are already demoralized the child feels no remorse in acting out of discontent. This becomes even worst when there is more than one child. Two or more children in

Prejudice

How It Made Me Feel/ Prejudice How It Made Me Feel I have never felt as though someone has prejudged me, so I have no real life experiences to go on. When we read this in class it kind of annoyed me cause I don't get how people can say that about are country because it is not the laws nor the country that determine how people are treated, but by the ignorant people who don't know any better. Whether you live in the United States or in an other country there will always be ignorant people who judge others before they know them. Also I don't think most people realize how good they have it here and how much more benefits they have here. Many countries don't have nearly as many laws about discriminating. Like I said before I have personal experiences with this, but I do realize that it would hurt your feelings and make you wonder all the time what is wrong with you when nothing really is its just the people that have the problem.Country Music Hall of Fame

Michael Jordan's Reign In Basketball Research Paper

Michael Jordan's Reign In Basketball - Research Paper Example In 1982 Michael Jordan made the winning shot in NCAA Championship game making his North Carolina Tarheals champions and beginning a legacy that would turn him into a living legend. It wasn’t long after that Jordan was drafted by the Chicago Bulls and in his first season became a fan favorite, and went on to claim the rookie of the year award. It wasn’t long before Michael Jordan became a star in the league. In the 1987 season he averaged 37.2 points per game and scored over 3,000 points; both numbers only matched by Wilt Chamberlain. The next season he again won the league in scoring and won his first league Most Valuable Player Award. Despite Jordan’s unheralded individual success, at this point he had still failed to achieve the allusive NBA Championship victory. In the 1990 season, finally after years of disappointment, Jordan and his Chicago Bulls achieved their first championship. Jordan and the Chicago Bulls would go on to claim the next two championship vi ctories as well. While Larry Bird and Magic Johnson helped greatly popularize the game, it was during this period that Michael Jordan took it to new heights. His heroic style of play brought a widespread audience to the game of basketball, bringing it and himself international acclaim. Still at the height of his accomplishments Jordan announced that he would retire to pursue a career in baseball. Three years later, by the influence and criticism of others, Michael returned to the game. Many people believed Michael would not get back in his groove yet defied odds and created a new atmosphere. As Michael was a true committed person he relied very much so on his self creating independence for himself and influenced the way he live and played. This was displayed by the way he operated, how he portrayed himself, how media coverage portrayed him etc. His motivation

Strategic Choices for Coca-Cola Company Research Paper

Strategic Choices for Coca-Cola Company - Research Paper Example The paper "Strategic Choices for Coca-Cola Company" focuses on Coca-Cola Company's strategic choices. The company has not operated alone in the market; it has received competition from other companies like Pepsi. In order to create an edge over its competitors, Coca-Cola has adopted differentiation strategy, which in many ways has proved successful for the company. It is important to evaluate how this strategy has been successful for the company and the likely recommendations for modifications especially in line with its mission and vision. Coca-Cola has for a long time favored the resource-based concept, which has become the main avenue of its strategic goals. The company perceives its success in the market to rest on effective use of its fundamental resources such as the brands, systems, capital, and the people. The goals of the company have been drawn and implemented based largely on these fundamental resources. At the same time, the attempts of the company have largely been geare d towards creating competitive advantage by utilizing its resources to the maximum. The most characteristic of the company has been reflected in its increased use of resources to promote its brands around the globe through increased advertisement and promotion. As a result, the company has been successful in creating strong brands in the market. In order to successful carry out its strategic goals and objectives, Coca-Cola has widely adopted the differentiation strategy, and this strategic method has enabled the company to strengthen. and foster its position in the wider global market (Knol Beta p.1). Differentiation strategy according to Porter aims to make company’s products or services unique when compared to its competitors (Stonehouse and Campbell p.177). The ultimate aim of this strategy is to create customer loyalty that exhibit little price elasticity of demand due to perceived unique aspects of the products or services as compared to competitors (Stonehouse and Campb ell p.177). Effective of this strategy for the Coca-Cola can be linked to its increased and ever growing advertisement and promotion activities, which have enabled the company to create a unique market position as compared to competitors. At the same time, differentiation strategy has proved successful given Coca-Cola’s established customer loyalty base, which has built over a long period. More so, refreshment and beverages market is increasingly becoming saturated and differentiation strategy has enabled Coca-Cola to stay apt and address the needs of its customers satisfactorily (Knol Beta p.1). Weaknesses of the company have been witnessed in negative publicity, increasing health concerns, unpopularity of some brands, and poor performance in some markets (Knol Beta p.1). As a result, differentiation strategy seems to address the concerns by responding to the unique nature of concerns in each market in the areas the company operates. On the same grounds, as the competition i n the market continue to increase especially in localized areas that Coca-Cola operates, the differentiation strategy seems to give the company upper hand in terms of penetrating markets and establishing loyal and satisfied consumer base. Lastly, as health concerns and

Balanced Diet Essay Example for Free

Balanced Diet Essay Maintaining a healthy balanced diet is important for maintaining optimal health throughout life. For women of childbearing age, good nutrition is important for preparing the body for the demands of pregnancy. During pregnancy, a woman’s macronutrient (energy) and micronutrient (e.g. vitamins, mineral) requirements increase, and it is even more important that she consumes food which will give her both the energy and the specific micronutrients which are essential for maintaining her and her growing baby’s health. For example, women require an additional 240 calories of energy per day in the second trimester and 452 calories per day in the third trimester of pregnancy to account for foetal growth. An additional 975 milligrams of iron is required in the course of the pregnancy to form foetal and additional maternal blood. While nutritional supplements can provide large quantities of particular micronutrients, a healthy balanced diet should form the basis of a woman’s nutritional intake. Good nutrition is most important immediately prior to conception and during the first 12 weeks of pregnancy (including the very early stages, when the woman is unaware she is pregnant). It is therefore important for women to maintain a healthy diet throughout their childbearing years, and particularly if they are planning to become pregnant.In addition to regular exercise, a healthy well balanced diet is essential for good health. Life or rather the quality of life you have is dependent on having good health. A well balanced diet would contain the three main groups of food as well as important vitamins and minerals. The first group of carbohydrates are found in foods such as bread, potatoes and rice. They are essentially energy giving foods which power the muscles and other tissues in our body. The next class of food is the proteins which form the solid part in all living cells. They are commonly found in milk, met and fish, and are necessary for the body to build new cells and repair old damaged ones. For this very reason growing children require a greater intake of the different kinds of proteins as compared to adults. Lastly we have fats which are also energy-living foods but do not give it up as quickly as carbohydrates because their molecular structure is designed to render them ideal as storage foods. As children are much more active than adults they use up more energy for their size and therefore require more energy giving foods such as  carbohydrates. To this end fats are unsuitable. Moreover too much of a fatty food intake at an early age may lead to a problem with obesity in later life. In adults fatty deposits on the walls of the blood vessels in the form of cholesterol may lead to all kinds of heart ailments. In addition to the foods above the body also needs small quantities of protective substances called vitamins and minerals. They are normally present in a sensible diet. For example vitamins A and D are found in some fatty foods. Vitamin D is important along with the mineral calcium, found in milk, for the formation of bones. Vitamin B is found in the husks of wheat or rice ad vitamin C in fresh fruits such as oranges and lemons. Important minerals such as potassium, zinc and iron are present in traces n most foods too. In addition to regular exercise, a healthy well balanced diet is essential for good health. Life or rather the quality of life you have is dependent on having good health. A well balanced diet would contain the three main groups of food as well as important vitamins and minerals. The first group of carbohydrates are found in foods such as bread, potatoes and rice. They are essentially energy giving foods which power the muscles and other tissues in our body. The next class of food is the proteins which form the solid part in all living cells. They are commonly found in milk, met and fish, and are necessary for the body to build new cells and repair old damaged ones. For this very reason growing children require a greater intake of the different kinds of proteins as compared to adults. Lastly we have fats which are also energy-living foods but do not give it up as quickly as carbohydrates because their molecular structure is designed to render them ideal as storage foods. As children are much more active than adults they use up more energy for their size and therefore require more energy giving foods such as carbohydrates. To this end fats are unsuitable. Moreover too much of a fatty food intake at an early age may lead to a problem with obesity in later life. In adults fatty deposits on the walls of the blood vessels in the form of cholesterol may lead to all kinds of heart ailments. In addition to the foods above the body also needs small quantities of protective substances called vitamins and minerals. They are normally present in a sensible diet. For example vitamins A and D are found in some fatty foods. Vitamin D is important along with the mineral calcium, found in milk, for the formation of bones. Vitamin B is found in the husks of wheat or rice ad vitamin C in fresh fruits such as oranges and lemons. Important minerals such as potassium, zinc and iron are present in traces n most foods too. In addition to regular exercise, a healthy well balanced diet is essential for good health. Life or rather the quality of life you have is dependent on having good health. A well balanced diet would contain the three main groups of food as well as important vitamins and minerals. The first group of carbohydrates are found in foods such as bread, potatoes and rice. They are essentially energy giving foods which power the muscles and other tissues in our body. The next class of food is the proteins which form the solid part in all living cells. They are commonly found in milk, met and fish, and are necessary for the body to build new cells and repair old damaged ones. For this very reason growing children require a greater intake of the different kinds of proteins as compared to adults. Lastly we have fats which are also energy-living foods but do not give it up as quickly as carbohydrates because their molecular structure is designed to render them ideal as storage foods. As children are much more active than adults they use up more energy for their size and therefore require more energy giving foods such as carbohydrates. To this end fats are unsuitable. Moreover too much of a fatty food intake at an early age may lead to a problem with obesity in later life. In adults fatty deposits on the walls of the blood vessels in the form of cholesterol may lead to all kinds of heart ailments. In addition to the foods above the body also needs small quantities of protective substances called vitamins and minerals. They are normally present in a sensible diet. For example vitamins A and D are found in some fatty foods. Vitamin D is important along with the mineral  calcium, found in milk, for the formation of bones. Vitamin B is found in the husks of wheat or rice ad vitamin C in fresh fruits such as oranges and lemons. Important minerals such as potassium, zinc and iron are present in traces n most foods too. In addition to regular exercise, a healthy well balanced diet is essential for good health. Life or rather the quality of life you have is dependent on having good health. A well balanced diet would contain the three main groups of food as well as important vitamins and minerals. The first group of carbohydrates are found in foods such as bread, potatoes and rice. They are essentially energy giving foods which power the muscles and other tissues in our body. The next class of food is the proteins which form the solid part in all living cells. They are commonly found in milk, met and fish, and are necessary for the body to build new cells and repair old damaged ones. For this very reason growing children require a greater intake of the different kinds of proteins as compared to adults. Lastly we have fats which are also energy-living foods but do not give it up as quickly as carbohydrates because their molecular structure is designed to render them ideal as storage foods. As children are much more active than adults they use up more energy for their size and therefore require more energy giving foods such as carbohydrates. To this end fats are unsuitable. Moreover too much of a fatty food intake at an early age may lead to a problem with obesity in later life. In adults fatty deposits on the walls of the blood vessels in the form of cholesterol may lead to all kinds of heart ailments. In addition to the foods above the body also needs small quantities of protective substances called vitamins and minerals. They are normally present in a sensible diet. For example vitamins A and D are found in some fatty foods. Vitamin D is important along with the mineral calcium, found in milk, for the formation of bones. Vitamin B is found in the husks of wheat or rice ad vitamin C in fresh fruits such as oranges and lemons. Important minerals such as potassium, zinc and iron are present in traces n most foods too. In addition to regular exercise, a healthy well balanced diet is essential for good health. Life or rather the quality of  life you have is dependent on having good health. A well balanced diet would contain the three main groups of food as well as important vitamins and minerals. The first group of carbohydrates are found in foods such as bread, potatoes and rice. They are essentially energy giving foods which power the muscles and other tissues in our body. The next class of food is the proteins which form the solid part in all living cells. They are commonly found in milk, met and fish, and are necessary for the body to build new cells and repair old damaged ones. For this very reason growing children require a greater intake of the different kinds of proteins as compared to adults. Lastly we have fats which are also energy-living foods but do not give it up as quickly as carbohydrates because their molecular structure is designed to render them ideal as storage foods. As children are much more active than adults they use up more energy for their size and therefore require more energy giving foods such as carbohydrates. To this end fats are unsuitable. Moreover too much of a fatty food intake at an early age may lead to a problem with obesity in later life. In adults fatty deposits on the walls of the blood vessels in the form of cholesterol may lead to all kinds of heart ailments. In addition to the foods above the body also needs small quantities of protective substances called vitamins and minerals. They are normally present in a sensible diet. For example vitamins A and D are found in some fatty foods. Vitamin D is important along with the mineral calcium, found in milk, for the formation of bones. Vitamin B is found in the husks of wheat or rice ad vitamin C in fresh fruits such as oranges and lemons. Important minerals such as potassium, zinc and iron are present in traces n most foods too.

THE IMMORAL PROPOSAL FOR THE CHANGE OF DRUG LAWS Essay -- Drugs

In the United States the use of illegal drugs is prohibited. If one uses or possesses any type of an illegal substance it is considered a criminal offense. One must know that 15 million Americans use drugs each month (Husak 7). There are various points of view that disagree and agree with this law. An advanced society must realize that the idea of any attempt to allow illegal drugs to be legalized, in any way in society, cannot be morally permissible; a sound minded person cannot allow more addiction in a drug infested country. For our purpose an advanced society is a large number of persons that are morally knowledgeable of human wellbeing. A drug, for our purpose, is described as any substance other than food which by its chemical nature affects the structure or function of the living organism. The idea of changing illegal substance laws started with drug legalization, which stretches back to the early decades of the 20th century, but the contemporary debate emerged in1988. Kurt L. Schmoke called for the debate on drug control and strategies. Schmokes’s argument was that for generations the United States has been pursuing policies of prosecution and repression that resulted in little more than overcrowded courts and prisons, increased profits for drug traffickers, and higher rates of addiction. There are two main view points on the changing of drug laws. One is the Prohibition view point which is against drug legalization. Prohibitionist believe that laws that are set in place are enough and that the legalization of drugs would further disrupt family structure and imply drug use to American youth that would lower perceptions of harms and risks, as well as failing to eliminate drug addiction.( Inciardi 20). The parallel v... ...n illegal substance must consider after addiction free choice is no longer free. The first few times an individual uses an addictive substance, but that choice disappears as addiction becomes an experienced reality (Inciardi 39). Work cited Heath, Samuel . "The Relationship between Parental Alcohol, Drug Abuse and Child Maltreatment ."childabuse,com (2011): n. pag. Web. 15 Apr 2011. Husak, Douglas . The Legalization of Drugs . Cambridge, New York: Cambridge Press, 2005. 198. Print. Inciardi , James A. The Drug Legalization debate . 2nd . Thousand Oaks, California : Sage Publications Inc., 1999. 1-117. Print. University of California - San Francisco. "Prescription Drug Addiction Is Under Investigation." ScienceDaily, 19 Apr. 2007. Web. 15 Apr. 2011. Wills, Suzanne. "Marijuana policy questions ." Drug Policy Forum of Texas (2004): n. pag. Web. 15 Apr 2011.

Electrochemistry experimen Essay

Introduction: Redox reactions are reactions where the oxidation states of the atoms change. The atoms are either oxidized or reduced, depending if they lose or gain electrons. Electrochemical cells are devices that cause a current from redox reactions. It is set up so that electrons lost from one of the reagents can travel to another reagent. This creates a voltage, which is also known as the electric potential difference. This voltage can be read if a high-resistance voltmeter or multimeter is connected to the circuit. Salt bridge is used to allow migration of ions between two electric cells to maintain neutrality of solutions. It is usually made up of a filter paper moistened with an inert solution or an inert solution/gelatine salt bridge to prevent oxidation of certain ions. This experiment is divided into 2 parts: part A and part B. Part A Objective: To investigate the effect of change in lead(II) ion concentration on the potential of the Pb2+(aq) |Pb(s) electrode Introduction: This experiment investigates the e. m. f. of the cell: Cu(s) |Cu2+(aq) |Pb2+(aq)|Pb(s). Keeping the ion concentration in the copper electrode system constant(1M) and varying the ion concentration in the lead electrode system, the effect of change in lead(II) ion concentration on the potential of electrode as well as the Kc of the above reaction can be found. Chemicals: Copper foil x1, lead foil x1, 1M Cu2+ solution, 0. 1M Pb2+ solution, saturated potassium nitrate solution Apparatus: 250 cm3 beakers, 50cm3 beakers multimeter, distilled water bottle, filter papers, electrical wires with electrode holders, forceps, 100ml volumetric flask,10ml pipette x2, dropper Procedure: 1. The 0. 1M, 0. 01M, 0. 001M, 0. 0001M Pb2+ solutions were prepared from 0. 1M Pb2+ solution by dilution(1 portion solution plus 10 portions water). 2. The copper and lead electrodes were cleaned with a sand paper. 3. The circuit was connected as the diagram below. 4. The e. m. f. was recorded when the data shown was stable. 5. The above steps(2-4) were repeated with 0. 01M, 0. 001M and 0. 0001M Pb2+ solutions. Safety precaution: Potassium nitrate solution: Contact with combustible material may lead to fire 1M Copper(II) sulphate solution: harmful and irritating to eyes and skin. –>Safety goggles should be worn. Experimental set-up Results: [Pb2+]/M log[Pb2+] E/V 0. 1 -1 0. 482 0. 01 -2 0. 502 0. 001 -3 0. 521 0. 0001 -4 0. 545 Graph of E against log [Pb2+]: Trend shown: Given the ion concentration in the copper electrode system constant, it is found that the potential of the cell drops as the lead(II) ion concentration increase. The electrode potential is inversely proportional to the ten folds of ion concentrations. Calculation: When the reaction Cu2+(aq) + Pb(s) –> Pb2+(aq) + Cu(s) achieves equilibrium, the net e. m. f. of the cell=0 volt. The equilibrium expression of this reaction is: Kc= [ Pb2+(aq)][ Cu(s)] /[Cu2+(aq)][ Pb(s)] The effective concentration of Pb(s)/ Cu(s) are independent of its amount present and can be considered as constant. This reduces the expression to Kc= [ Pb2+(aq)] /[Cu2+(aq)] = 1Ãâ€"1021 Conclusion The potential of the cell decreases ad the ion concentration of Pb2+ increases. Further Analysis: Using the Nernst equation: E=E? -0. 059/n log[ox]/[red], Take [Pb2+]=0. 1 M as an example, E=0. 47-0. 059/2 log(0. 1/1)=0. 4405(V) [Pb2+]/M log[Pb2+] E/V(calculated) E/V(measured) %difference 0. 1 -1 0. 4405 0. 482 9. 42% 0. 01 -2 0. 529 0. 502 5. 10%.0. 001 -3 0. 5585 0. 521 6. 71% 0. 0001 -4 0. 588 0. 545 7. 31% It is shown that difference is present between the calculated value and measured value. This may be because of different conditions, resistance of the multimeter or errors in preparation of various concentrations of solutions. Part B Objective: To find out the equilibrium constant by e. m. f. measurement Introduction: The equilibrium constant for the below reaction is found out: Ag+(aq) + Fe2+(aq) Fe3+ (aq) + Ag(s) By e. m. f. measurement on the cell Pt |Fe2+(aq), Fe3+(aq)|Ag+(aq)|Ag(s) Chemicals: 0. 1 M Fe3+ solution, 0. 2 M iron(II)sulphate, 0. 2M barium nitrate, 0. 4M silver nitrate, platinum electrode, silver electrode Apparatus: gelatine salt bridge, 250 cm3 beakers, 50cm3 beakers ,multimeter, distilled water bottle, electrical wires with electrode holders, forceps, 10ml pipette x2 Procedure: 1. Equal volumes of 0. 2M FeSO4 and 0. 2M Ba(NO3)2 were mixed and the precipitate was allowed to settle without disturbance. 2. Equal volumes of 0. 1M iron(II) nitrate solution obtained and the iron(III)nitrate solution were mixed. This was the Fe2+(aq)/Fe2+(aq) half-cell. 3. The 0. 4M, 0. 2M, 0. 1M, 0. 05M, 0.025M silver nitrate solutions were prepared from 0. 4M silver nitrate solution by dilution. 4. The silver electrode was cleaned with a sand paper. 5. The circuit was connected as the diagram below. 6. The e. m. f. was recorded when the data shown was stable. 7. The above steps (4-6) were repeated with 0. 2M, 0. 1M, 0. 05M, 0. 025M silver nitrate solutions. Safety Precaution: Silver nitrate: harmful and oxidizing; 1) Poisonous if swallowed or inhaled 2) Skin contact with silver nitrate solid or solutions is likely to leave silver stains on the skin. Barium nitrate is poisonous and very harmful if swallowed. It is also a strong oxidizer, so may be hazardous if mixed with flammable materials. Experimental Set-upResults: [Ag+]/M log[Ag+] E/V 0. 4 -0. 398 0. 023 0. 2 -0. 699 0. 005 0. 1 -1 -0. 030 0. 05 -1. 301 -0. 050 0. 025 -0. 025 -0. 053 Graph of E against log[Ag+(aq)]: Calculation: When the reaction reaches equilibrium, both forward and backward reactions proceed to the same extent. This means that both the half cell reactions would have the same potential to proceed, so that the net e. m. f of the cell =0 volt at equilibrium. From the graph, the x-intercept is log[Ag+(aq)]=-0.72, hence,[Ag+(aq)]eqm=0. 1905 Ag+(aq) + Fe2+(aq) Fe3+ (aq) + Ag(s) KC= [Fe3+ (aq)]/ [Ag+(aq)][ Fe2+(aq)] =0. 1/ (0. 1905X0. 1) =5. 2493(mol2dm-6) ~5. 25(mol2dm-6) Conclusion: The equilibrium constant for the reaction between Fe2+/Fe3+ and Ag+ is 5. 25 mol2dm-6. Discussion(for both parts): 1. Possible Errors: -The electrodes (Cu(s),Pb(s),Ag(s)) were not cleaned very well with a sand paper so that they are not conducting electricity in all parts. The e. m. f. measured may hence be underestimated. -The same ammonium nitrate/gelatine salt bridge was used several times in part II of experiment. Ions of previous measurement may remain in the salt bridge and change the concentration of ions in the next measurement. -The apparatus including pipettes, beakers and volumetric flask may not be washed to be very clean. The error in concentration may be enormous when handling very dilute solutions (e. g. 0. 001M, 0. 0001M, 0. 025M) -The electrode touched the salt bridge once so that the accuracy of measurement of e. m. f. was affected. The solution is not exactly passed. -Air gap may be present in the ammonium nitrate/ gelatine salt bridge, increasing the resistance of ion migration. 2. Difference in effect of ion concentration on electrical potential of cell: -In part A, the cell e. m. f. increases as [Pb2+(aq)] decreases. However, in part B, the e. m. f. drops as [Ag+(aq)]. This suggests that when the species is a stronger oxidizing agent in the reaction and undergoes reduction, the presence of its ions tends to increase the e. m. f. whereas the one which undergoes oxidation tends to reduce the e. m. f. The species with more positive standard reduction potential has a positive effect but the one with less positive potential has a negative effect. Reference: Physical Chemistry II by TM Leung and CC Lee( p. 295-298 &299-301).