Acid-Base Titration Calculation

An acid-base titration is a neutralization reaction performed in the lab to determine an unknown concentration of acid or base. The moles of acid will equal the moles of the base at the equivalence point. So if you know one value, you automatically know the other. Heres how to perform the calculation to find your unknown: Acid-Base Titration Problem If youre titrating hydrochloric acid with sodium hydroxide, the equation is: HCl NaOH → NaCl H2O You can see from the equation there is a 1:1 molar ratio between HCl and NaOH. If you know that titrating 50.00 ml of an HCl solution requires 25.00 ml of 1.00 M NaOH, you can calculate the concentration of hydrochloric acid, HCl. Based on the molar ratio between HCl and NaOH, you know that at the equivalence point: moles HCl moles NaOH Acid-Base Titration Solution Molarity (M) is moles per liter of solution, so you can rewrite the equation to account for molarity and volume: MHCl x volumeHCl MNaOH x volumeNaOH Rearrange the equation to isolate the unknown value. In this case, you are looking for the concentration of hydrochloric acid (its molarity): MHCl MNaOH x volumeNaOH / volumeHCl Now, simply plug in the known values to solve for the unknown: MHCl 25.00 ml x 1.00 M / 50.00 ml MHCl 0.50 M HCl

Analysis Of F. Scott Fitzgerald s Babylon Revisited

In Babylon Revisited, F. Scott Fitzgerald introduces the reader to a character by the name of Charlie Wales. The reader learns that Charlie is a recovering alcoholic hoping to reestablish a relationship with his daughter, Honoria. Fitzgerald shows evolvement through the character of Charlie Wales. When readers are first introduced to Charlie, he is on his way to visit his daughter. Honoria has been living with her Aunt Marion and Uncle Lincoln after the death of Helen, Honoria’s mother and Charlie’s wife, as well as Charlie being committed to a sanitarium. Charlie was at a crossroad in his life; he had already lost his wife and his daughter and he was forced to make a major decision in his life. While Charlie is visiting Honoria, she mentions wanting to live with him. He decides to talk to Marion and Lincoln; Lincoln seems to be receptive of him taking on a larger role in his daughter’s life. However, Marion is not so acceptant. Marion believes Charlie to be part ially responsible for her sister’s death and questions his drinking. Charlie mentions Helen’s death was due to heart trouble and he hasn’t â€Å"had more than a drink a day for over a year, and I take that drink deliberately, so that the idea of alcohol won’t get too big in my imagination (Fitzgerald 682).† Just as in life today people are faced with tough decisions that could greatly impact their lives, Charlie is faced with tough choices that could not only hinder his chances of getting his daughter back but once againShow MoreRelatedAnalysis : Babylon Revisited By F. Scott Fitzgerald And Sonny s Blues Essay1316 Words   |  6 Pagesaddiction can be an agonizing and insufferable adventure anyone can ever face. It usually starts small with a â€Å"I’ll try it once†, then eventually becomes a fully developed addiction. In Babylon Revisited by F. Scott Fitzgerald and Sonny’s Blues by James Baldwin, both poems portray blindness verses sight. Babylon Revisited is about a man named Charles Wales who returns to Paris and is on a mission to regain custody of his daughter while being blinded by his addictions whereas Sonny’s Blues is about a narratorRead MoreAn Analysis Of Edith Wharton s Roman Fever And F. Scott Fitzgerald s Babylon Revisited Essay1315 Words   |  6 Pageswith conflict. People use deceit, manipulation and even other people as a way of creating conflict. The same way these things happen in real life, the same happens with characters in literature. In Edith Wharton’s â€Å"Roman Fever and F. Scott Fitzgerald’s â€Å"Babylon Revisited†, characters do the strange thing of using their own children as a way of pushing other others into their past, a method to hurt them. Here we will observe the roles of children in each story and how they are used by other charactersRead MoreAnalysis Of The Story Babylon Revisited 1777 Words   |  8 Pages In the story F. Scotts Fi tzgerald dubbed, Babylon Revisited a story about a man named Charlie Wales who goes on a quest to go to Paris and bring back his daughter, Honoria, back home to live with him instead of his sister and brother-in-law. Charlie was a man who had a drinking problem when him and his wife were still together even when they had Honoria. Eventually, Charlie s bad temperment led him to lock his wife out of his house which indirectly led to her untimely death and Honoria beingRead More Search for Innocence in American Modernism Essay1592 Words   |  7 Pagesthe wasteland, but they hint at a way out. The path out of the wasteland is through a return to innocence. This is evident in the Modernist works of The wasteland by T. S. Eliot, Directive by Robert Frost, Babylon Revisited by F. Scott Fitzgerald, and Hills Like White Elephants by Earnest Hemingway as will be shown in an analysis of the inhabitants of the wasteland and their search for innocence, the role of children and pregnancy in the wasteland, and the symbolism of water and rebirth.

Ece Human Developemnt Across Lifespan Free Essays

Discuss how knowledge of theories of human development across the lifespan relates to ECE practice. 2. 1 Theories of human development across the life span are explained in terms of their relevance to New Zealand early childhood education today. We will write a custom essay sample on Ece Human Developemnt Across Lifespan or any similar topic only for you Order Now 2. 2 Theories of human development across the lifespan are explained in terms of understanding of adults and children and informing and influencing ECE practice. 2. 3 Theories on human development across the lifespan are explained in terms of how they inform and influence own practice in an ECE service. Lev Vygotsky Vygotsky’s theory is the idea of Zones of Proximal Development (ZPD) â€Å"the distance between the actual development level an individual has achieved (his or her independent level of problem solving) and the level of potential development he or she could achieve with adult guidance or through collaboration with other children. † (Bredekamp, 117) In New Zealand early childhood education, they believe that the understanding of a child’s ZPD is important because it allows teachers and caregivers to scaffold appropriately in order to help children reach their full potential. Self-regulation and private speech are also important aspects of Vygotsky’s theory. He theorized that children need to master these skills in order to be successful. If children are able to master these skills, they will be able to demonstrate self-discipline and improve their executive function. The educator is a co-constructor of knowledge with the child. Instead of lecturing or direct instructions, the educator allows and guides the child to come to his or her own understanding of the material. An educator in the early childhood ecntre will aid and support the child in their own discovery and initiative through a concept called, the zone of proximal development (ZPD). The ZPD allows a child to tackle a problem that is sufficiently novel to attract and maintain a child’s attention, yet not so difficult that the solution cannot be perceived (Edwards, 2005). To expand this concept to the centre, the teacher will ‘set up’ activities for children that are just beyond the children abilities and then guide and support the children to come to a solution themselves with minimal help from the educator. Howard Gardner Howard Gardner developed the theory postulates that there are seven or more intelligences that each individual is born with and is needed to live life well (Smith, 2002, 2008). As people develop new knowledge, often these intelligences complement each other (Hatch, Gardner, 1989). In New Zealand early childhood education they believe that in Gardner’s Multi Intelligence theory, the learner is seen as an active participant in their own learning. When new knowledge is presented to the chid, the child will utilize different intelligences in order to synthesize and analyse the new information. The theory of MI properly accounts for the fact that children learn in different ways and use different cognitive capabilities to construct knowledge. It also emphasizes the importance of using a diverse curriculum in the centre that utilizes different subject areas such as music, fine arts and physical activities. For example, if a teacher extends children’s learning, he or she can show some pictures, use real things, sing a song, each method of learning in this case will appeal to the learning styles of different children. In MI theory, the adults can take a broader view of learning to include all intelligences and consequently plan and deliver activities that will allow children to learn through intelligence that they are strongest in. Taking this approach to learning, adults are able to give their children extended opportunities to construct new knowledge that makes most sense to them and can therefore be readily applied to situations. Erik Erikson Erikson developed the view that each person experiences a set of â€Å"conflicts† that need to be resolved during each of the eight stages of development, the first three stages spanning early childhood. These conflicts arise from demands made on a child by his parents of by society in general. As each conflict is resolved, the individual becomes ready to grapple with the next stage. When conflicts are unresolved, they remain issues for the individual to struggle with later in life. In New Zealand early childhood education they used Erikson’ theory as a based on theories and practices in Ece setting. For example the first three stages of psychosocial development. Stage 1: Trust versus mistrust (birth to 1 year of age). During this time, the infant struggles to develop trust in the world. Erikson felt that children learn to trust when educators and parents are nurturing, responsive and reliable. Stage 2: Autonomy versus shame and doubt (18 months to 3 years). This stage is characterized by the child’s increasing desire to discover. Educators and parents help children by understanding the child’s needs for both independence and dependence. Erikson believed that, if this fails to occur, a child will experience feelings of shame and doubt. So there, this is the stage where you teach independence, not at birth. Stage 3: Initiative versus guilt (3 to 6 years old). At this time, the child is eager to master new skills, use language to ask questions, and interact with other peers. At the same time, the child still relies on the comfort and security provided by educators and parents. If a child’s developing sense of initiative is neglected or ignored, Erikson stressed that the child’s misguided energy could result in verbal or physical aggression. Teachers who apply psychosocial development in the classroom create an environment where each child feels appreciated and is comfortable with learning new things and building relationships with peers without fear† (Tamara , 2010, para. 1). In New Zealand Early Childhood education one of their goals is from Te Whariki curriculum Strand 2 that they implement in the every centre, the belonging where children experience an environment where they know they have a pl ace and feel comfortable with the routines, custom, and regular events. Educator encourage initiative in young children, they believe that children should be given a great deal freedom to explore their world. They should be allowed to choose some of the activities they engage. If their request for doing certain activities is reasonable, the request should be honoured and they provide exciting materials that will stimulate and extend their imagination. How to cite Ece Human Developemnt Across Lifespan, Papers