Acids and Alkalis Lab Report Essay Example for Free

Acids and Alkalis Lab Report Essay An acid is a group of chemicals. Acids are positively charged ions, they are liquid and are solutions of pure compounds in water. If you want to know if something is an acid, you can test it by using litmus paper. Acids will turn litmus paper red, whilst alkalis will turn it blue. Alkalis are negatively charged ions and are usually solid. Aim:To find out how much of different acids is needed to neutralize 25mls of sodium hydroxide solution (NaOH). Hypothesis:The strongest alkali will need the smallest amount of an acid to cancel out and the weakest will need more acid. Variables: Control| Independent| Dependent| The indicator, NaOH| H2SO4 HClHNO3| The chemical reaction between the acids and alkali. | Materials / Apparatus: * H2SO4 * HCL * HNO3 * Alkali (NaOH) * Stand * Burette * Beaker * Funnel * Bunsen Burner * Crucible * Phenolphyalein Method: 1. Pour the 25 ml of NaOH into a beaker. 2. Drop three drops of phenolphyalein into the beaker. 3. The solution will now turn pink. . Through a funnel, pour the acid into the burette. Start dripping a few drops one by one into the beaker. 6. The solution will start getting a lighter shade of pink. 7. Stir the beaker around. 8. Once the solution turns clear, stop adding more acid. 9. Calculate the amount of acid used. 10. Take the solution and pour a bit of it into a crucible. 11. Light the Bunsen burner. 12. The salt solution will turn into salt crystals when it is heated. NaOH + HCl = NaCl + H2O NaOH + HNO3 = NaNO3 NaOH + H2SO4 = Na2SO4 + 2H2O Observations: Alkali| Acid| Moles| Observation| NaOH| HCL| 1 Mole| Took 4 ml to neutralize. No further experiment was made. | NaOH| HCL| 0. 1 Mole| Took 31 ml to neutralize. 2. 30 minutes until pink salt crystals were formed. | NaOH| HNO3| 1 Mole| Took 19. 2 ml to neutralize. 2 minutes until good white salt crystals were formed. | NaOH| H2SO4| 2 Moles| Took 1. 1 ml to neutralize. 2. 15 minutes until rings of white salt were formed. | Analysis: The weakest acid (HCl 0. 1 Mole) needed the most alkali to be made into salt and the strongest (H2SO4 2 Moles) needed the least. Different experiments made different salts. Conclusion: The strongest acid will work faster and you will need less. This is because it is a lot more reactive than the weaker acids and it will want to react much faster with the alkali. Evaluation: In my group, Zuzanna and I were the ones doing the experiment while everyone else observed and took notes on what happened. The first time, we dropped one too many drops of H2SO4 in the alkali so the alkali quickly turned pink again. We had to try it six times before we could get it right because we kept putting too much in or we would forget how much we put in. But after a few tries we finally got it to work and we got the correct solution. Therefore we could finally go on to the next step and heat up the solution. It took our salt around 2 minutes and 15 seconds to heat up, evaporate and leave us with small rings of white salt crystals. Our salt crystals did not turn out as the best, but they were successful.

Technology and Individualization in Education Essay -- Technological I

Technology and Individualization in Education Technology is a major influential factor in the progression of education. Technology has allowed for many positive advances in education, allowing for more efficient, more individualized learning. The introduction of computers in education has provided countless benefits to students, and enhanced learning greatly. Students now have a much broader wealth of information in which they can get knowledge from, and more specialized learning. Education will continue to be benefited by technology as progression continues. Individualization in education should be an ultimate goal, and this can only be achieved through technology. Technology should continue to be an influential factor in education. Computers have been the most influential form of technology to affect education. Many experts are critical of computers in the classroom. Dennis Gooler suggests that computers institute a gender gap, and that serious questions need to be addressed before computers are allowed in classrooms. He says that boys are much more inclined to use computers, and that girls will be left behind in the technology craze. I think that the way to solve this problem is to have computers in schools and promote their use by both genders. Computers allow for students to learn individually, and to gain access to a plethora of knowledge that has recently become accessible. There are many ways that computers have benefited learning. Studies have proven that computers in the classroom cause students to get better grades, because their learning is based on personal learning styles. Before computers were invented, all papers had to b e typed out in typewriters. Computers have made typing papers much easie... ...ucation. Our society is in a constant state of progression through technology, and it is only right that education is included. Education is positively effected by technology in many ways, and will continue to be benefited, until individualized education is achieved. Advancement occurs all throughout the Bible, and the importance of education is stressed. I believe that God is pleased when the two come together for an advantageous outcome. Works Cited 1) Gooler, Dennis D. â€Å"Computers in the Classroom: What is the effect on the Gender Gap?† Stanford March 1998: 1-10. www.Google.com. 9 November 2001.

Memorable and Striking Essay

How Charles Dickens Creates Characters That Are Both Memorable and Striking  One of Charles Dickens’ greatest strengths is his ability to create characters that are both believable and memorable. Dickens appealed to all classes of society: to intellectuals and simple folk alike. In ‘Great Expectations’, which was published as a weekly serial, examples of his strengths fill the novel, and this is perhaps why ‘Great Expectations’ has remained as popular now as it was when it was first written. It was not until 1823 that Charles and his family moved to London from Portsmouth. Up until this time he had a happy family life and was doing well at school, already he was a great reader. However life in London was very different, the family had no money, Dickens could not go to school and his father was imprisoned for debt. At the age of eleven he had to work in a shoe-blacking factory and this left a long lasting impression. This experience was relatively short-lived, the family situation improved and he was able to return back to school from there to working in a lawyers office, teaching himself shorthand. By the age of twenty he had become an established newspaper reporter and started to write short stories in his spare time as well as directing and acting in amateur dramatics. Even by his mid twenty’s Dickens’ ability to absorb and portray information was remarkable. Partly due to his tremendous literacy knowledge (for example he read Defoe, Fielding when he was very young) and also as a result of his employment (he frequently reported on Parliament for example) he was able to use his detailed knowledge of London life and people in his writing.  In this essay I intend to discuss the characters of Pip, Joe Gargery, Miss Havisham and Abel Magwitch, because I think these four between them demonstrate Dickens’s expertise at blending character, plot and setting within the novel. One of the techniques that Dickens uses is first person narrative. The book is written from the point of view of Pip who narrates using personal pronouns such as ‘me’ and ‘I’. This technique is effective because it shows the viewpoint of a character (namely Pip) who is able to use personal details and clearly describes surroundings.  Pip is the person on whom the whole novel revolves; the novel starts and ends with Pip. The dictionary’s definition of a pip is ‘ a small hard seed of an apple, pear or orange’. This is relevant to Pip in a way because he is a person who should develop or grow from a ‘small bundle of shivers.’ However, his circumstances at the beginning of the novel give us the impression that this will not allow him to develop. During Pip’s early childhood, he is unjustly suppressed and bullied by his sister, and to a lesser degree, by Pumblechook at the Christmas dinner and the rest of the village.  Ã¢â‚¬Å"You would have been disposed of for many shillings†¦and Dunstable the butcher would have come up to you as you lay in your straw,†Ã‚  Ã¢â‚¬Å"You come along and be dosed.†Ã‚  Pip is regularly fed tar water for any simple wrongdoing by his sister who also chastises him regularly with the ironically named ‘Tickler’. Although Pip has the friendship of his brother-in law Joe, this is not enough to stop him developing into a timid, undernourished yet sensitive child. Pip next has pressure put upon him when he goes to Satis House and has his first encounter with Estella and Miss Havisham. Pip’s overwhelming love for Estella and his change in attitude and behaviour towards others hide the real values of life. He becomes ungrateful to Joe and from time to time, his conscience tells him he has behaved badly but finds it difficult to change. It is quite easy to criticise Pip for his change of feeling towards his life long friend Joe, but we must understand that he has been deeply affected by the bullying which he had suffered in his early years at the hands of his dominating sister, as well as his need to improve his life-style. Pip is also rather gullible, we can see this in his encounter with the convict – he really believes that the convict namely Magwitch will tear his liver out; this is because of the atmosphere of death in the graveyard. Also the way that Magwitch speaks in his rough and raspy voice.  When Pip meets Estella, he is taken in by her charms. For the first time he becomes aware of the social differences and background between them. This makes him feel dissatisfied with his life, he feels ashamed of his home, of his ‘coarse hands’ and ‘thick boots’ and the first realisation that life could be better enters his mind. Unfortunately Pip becomes rather distant from his peers and when he finds out he is to come into fortune (his ‘Great Expectations’), he is quick to drop his childhood friends and family in case they embarrass him. Although sometimes he feels guilty about this, he still acts this way. Moving to London and meeting Herbert Pocket again inspires Pip to be more like him, a young gentleman.  However, Pip leaves behind one of the only true gentlemen in the novel Joe Gargery is a blacksmith who is married to Pip’s sister.  Ã¢â‚¬Å"A giant of a man, with fair hair curly hair and mild blue eyes.†Ã‚  Joe is an honest, kind and simple man who becomes a father figure to Pip. Throughout the novel he is one of, the few characters who does not really change. Joe shows the dignity and strength of a gentleman as he is still loyal to Pip, despite Pip’s neglect of Joe. He is able to accept his wife’s harsh personality without showing his true feelings and he finds it difficult to stand up to her strong will. Although partly educated, he is always willing to learn, and is very proud at Pip’s good fortune, and is happy to stay in the background whilst Pip is in London receiving his training to ‘become a gentleman’. Miss Havisham is a bitter old woman whose heart and mind are as decaying as the house in which she lives. When Pip first meets Miss Havisham ‘†¦the strangest lady I have ever seen†¦Ã¢â‚¬â„¢ she is wearing ancient yellowed bridal clothes and he notices that everything in the room is gloomy, faded and old. All the clocks and her watch have stopped at eight forty am. ‘I saw that the bride within the bridal dress had withered like the dress†¦Ã¢â‚¬â„¢

Erik Erikson s Developmental Theory Essay - 1628 Words

Firstname Lastname Instructor’s Name Course Number Date Erik Erikson Developmental Theory Erik Erikson is a famous German-born American psychologist, who developed his own psychoanalytical developmental theory. This developmental theory was aimed to identify the steps a developing human should to pass from infancy to adulthood. Erikson identified eight steps of the psychological development. The ideas of Erikson were heavily influenced by an Austrian psychologist Sigmund Freud, who also analyzed the human psychological development and identified psychosexual stages of development. However, Erikson did not emphasize the predominant role of sexual development in psychological development. He argued that the role of culture and society on a human was the most significant factor which through the evolution separated human psychological development from the development of animals. Erikson writes that there are conflicts which take place within ego and they are usually caused by external factors (society, culture, etc.) Thus, according to Eriks on, a human successfully completes the stage when he resolves the main conflict within his ego. (McLeod) Erikson develops his ideas basing on the idea that biological and social nature coexist in each person and each psychological crisis at the end of each life stage reveals a conflict between social and biological forces of a human. Reconciliation of these two identities leads to the harmonious psychological development. On the otherShow MoreRelatedSigmund Freud And Erik Erikson1110 Words   |  5 Pagespredominantly attained by parents of children with emotional problems 70- 80 decades ago. The discontinuous psychosexual and psychosocial theory takes place in stages in one course moving through drives that are biological along with societal expectations (Berk, 2013). The contributions to this perspective include both Sigmund Freud and Erik Erikson. Freud examined psychosexual theory and how those first childhood years of drives shape the personality. Thus, such drive names are t he id, ego, and superego. TheRead MoreErik Erikson s Stages Of Development1608 Words   |  7 Pages The Psychosocial Development The View on Erik H. Erikson s Stages of Development Frank Phan Cosumnes River College Psychology 300 Abstract This paper will touch over the aspects of Erik H Erickson s eight stages and how they affect everyday lives from infancy to adulthood. The paper will go over the approximate ages and the psychosocial crisis that they will eventually come to. Neglecting a child can lead to a cause of mental negligence in the form of Arrested Development. Within differentRead MoreAnalysis Of Eriksons Theory On Early Childhood Education1212 Words   |  5 Pagesthe education profession. Erik Erikson Hope is both the earliest and the most indispensable virtue inherent in the state of being alive. If life is to be sustained hope must remain, even where confidence is wounded, trust impaired. - Erik Erikson Erik Erikson (1902-1994) was a Germon born developmental psychologist and psychoanalyst known for his theory on psychosocial development of human lie. He is most famous for devising the phrase â€Å"identity crisis.† Erikson was a Harvard professor althoughRead MoreErik Erikson s Psychosocial Theory On Child Development1388 Words   |  6 PagesErik Erikson’s Psychosocial Theory on Child Development Erik Erikson, a well known developmental theorist, developed his theory about stages of human development from birth to death by using Freud s work as a starting point. According to Erikson, personality develops in a series of stages. Erikson found out that children experience conflicts which affect their development. He described the internal conflict which children go through in developmental stages using the term ‘crisis’ and are based onRead MoreAnalysis Of The Book Mcadams 1154 Words   |  5 Pagesthis article McAdams, the author guides the reader through the life stories of different psychologists , he provide a real recollection of life stories and narrative approaches that recent researcher and theories have apply to understand human behavior. This article integrates recent theories and researchers of life stories as illustrated the investigation of self-understanding, personal memory, personality structure and change, and the relations between the personal lives and cultural. The articleRead MoreThe Eight Crisis Stages Of Erik Erikson Development Theory1456 Words   |  6 PagesA theory is defined by an interrelated, coherent set of ideas that help to explain phenomena and facilitate predictions. With development the series of age-related changes that happen over the course of a life span which theorist observe these developments as a series of stages during which individuals displays qualities of behavior patterns. There are five theoretical orientation to development such as psychoanalytic, cognitive, behavioral and social cognitive, ethological, and ecologicalRead MoreEarly Life Experiences Impact The Person Across Their Lifespan930 Words   |  4 PagesPiaget theory ‘Stages of cognitive development’ (1936) and Erik Erikson theory ‘Psychosocial stages’ (1950). Piaget argued that children develop knowledge by constructing their experience and observe with their own ideas about how the thing works.(Bur ton, L.J., Westen, d. Kowalski, R.M. 2015) He developed 4 stages of his theory: Sensorimotor Stage, Preoperational Stage, Concrete Operational Stage and Formal Operational Stage. At the same time, Erik Erikson proposed a psychoanalytic theory of psychosocialRead MoreCompare and contrast the developmental life span theories742 Words   |  3 Pagesdevelopmentalist focus on nature and nurture in the development of children. Bronfenbrenner’s theory is based on a child’s state of affairs and circumstances. The key idea in Erik Erikson’s theory is that the individual faces a conflict at each stage which may or may not within that stage. Erik Erikson was a psychologist who was most famous for coining the phases of identity crisis. Accordant to Erikson, the ego develops as it successfully resolves crises that are distinctly social in nature. TheseRead MoreErik Erikson s Psychosocial Development Theory1518 Words   |  7 PagesABSTRACT This research paper will show a thorough review of Erik Erikson s Psychosocial Development Theory, specifically the transition from adolescence to adulthood. Psychosocial Development, according to Erik Erikson, is a continuity of crisis throughout our lifespan; these challenges will shape our personality and the way we perceive our surroundings. In addition to this, the different stages mentioned in this Theory complement each other and help us to develop the tools to achieve a sense ofRead MoreDevelopmental Psychologist Erik Erikson s Stages Of Psychosocial Development1729 Words   |  7 PagesDevelopmental psychologist Erik Erikson changed the way that people viewed the psychosocial development in humans throughout their lifespan. Using the foundation provided by Freud’s psychosexual stages, he modified the concepts to where they demonstrated external impacts on development as well as making it more about emotional conflicts than necessarily physical drives. This eight-stag e theory is sequential, and requires the person to overcome conflicts in each stage to become a productive member