Psychotic Features Of Bipolar Disorder - 857 Words

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History Is The Study Of Fast Event - 931 Words

History Final Assignment History is the study of fast event or information about fact what people did to make this world beautiful. From this class or especially from my professor Amy Bell I learn that what written in the books are not all fact. Before I used to hate history subject because of date, but after taking history two I started to love to study different history books to know the fact. Especially I read the united states history books because I live here and want to know everything about where I lived. What we read in a book is the writer view point according what they heard. Actually, history books are not written by histologists but it was written by educational writer. â€Å"History can be imagined as a pyramid. At its base are millions of primary sources-the plantation records, city directories, speeches, song, photograph, newspaper articles, diaries, and letters that document time past† (loewen 3). 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A Journey To The Center Of The free essay sample

Earth Essay, Research Paper In the novel, A Journey to the Center of the Earth, writer Jules Verne tells the fabricated narrative of three work forces and their escapades as they descend into the deepnesss of the Earth. The taking character in this expedition is a fifty-year-old German professor named Hardwigg. He is an uncle to the storyteller, Henry ( Harry ) , a simple Englishman. The other adult male is Hans, a calm Icelandic usher. Professor Hardwigg finds a piece of parchment that written in Runic in a book. Harry finds out before his uncle that it says there is a manner to acquire into the centre of the Earth through a mountain ( Mt. Sneffels ) in Iceland. Harry is loath to state his uncle the message because he is afraid his uncle will really desire to see the centre of the Earth. He was right because the professor wanted to research every bit shortly as possible. We will write a custom essay sample on A Journey To The Center Of The or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page They head off to Iceland, and, along the manner, receive Hans as their usher. The journey to the mountain itself takes a piece. They reach the entryway to the centre, and from at that place, they head indoors. Once in the dark mazes, they descend ( this goes on for yearss ) . The three work forces so face troubles: thirst, visible radiation, acquiring lost, hurts, and weariness, were among them. They make many finds. They find that there? s a sea, with fish and sea monsters. They find woods, elephantine mushrooms, animate beings that look like dinosaurs, and even what seems to be elephantine human existences. The thought of composing this narrative came from a scientist who explored the crater of a certain mountain. Verne got the thought that maybe it would be possible to fall even further into the Earth. Many of Verne? s? phantasy? narratives have come true in the old ages following his decease in the twelvemonth 1905. A Journey to the Center of the Earth is farthest from world. Even with the engineering we have today, it would be impossible for one to fall into the Earth. For one thing, we know now t hat the Earth can? t be hollow because of utmost force per unit areas and temperatures. Peoples became interested in Verne? s narratives during his clip because though they were unrealistic, they were excessively interesting and entertaining to go through up. Some people even believed he had traveled to the many topographic points that he wrote of. While look intoing into a hotel one time, the adult female told him to rest good in the room because he must be tired from his many escapades. She likely thought this because Verne uses facts of scientific discipline so good the narrative can look as if it were really the existent thing. Verne? s Hagiographas about pigboats, infinite travel, choppers were prognostications of the hereafter. It is a enigma how he came up with such thoughts for wondrous told escapades. Verne grew up when steam engines were altering the universe. He was the first author to proclaim that scientific find could motivate singular narratives. I found A Journey to the Center of the Earth thoughtful and mind-boggling at the same clip. The finds they find are genuinely incredible: Sea monsters, a sea, giants, woods and elephantine mushrooms. These are certainly non-existent because nil like them could populate in such fortunes. The characters in this narrative must hold besides been highly strong and determined, since they? re able to populate for so long resistance in darkness ( slightly ) . The beginning of the narrative is rather slow ; they take a long clip to get down falling into the Earth. Once you get into the narrative, its quite easy to happen yourself in the thick of the channels of granite. A Journey to the Center of the Earth is a wondrous good written book. The really thought of a individual being able to go into the Earth is singular in itself. To set seas and animals into the narrative is exceeding. Jules Verne is such a great author, he makes this escapade seem as if it really happened ; as if it weren? T merely some phantasy, but an undeniable being.

Recrystallization of Benzoic Acid Outline Essay Sample free essay sample

Purification – physical separation of drosss and byproducts from an impure sample pure substance. *Distillation- for liquid compounds.*Recrystallization- solid compounds Recrystallization– precipitation of a solid cpd. from a concentrated solution in the signifier of crystals through chilling or vaporization -7 stairss:1 ) choosing the appropriate dissolver2 ) fade outing the solute3 ) bleaching the solution4 ) removing suspended solids5 ) crystallising the solute6 ) collection and rinsing the crystals7 ) drying the merchandise– 2 Kinds of Impurities: 1 ) more soluble2 ) less soluble than the chief constituent– impure solid foremost dissolved in an appropriate dissolver when heated – appropriate/ideal solvent = dissolves constituent to be purified when hot ( boiling point ) . = does NOT fade out constituent to be purified when cold= room temp. or 0oC = either dissolves drosss when cold OR does NOT fade out drosss when hot – constituents will so crystallise in its purer signifier as the solution is cooled. Less soluble constituent will crystallise first As the crystals are formed. the right molecules that will suit in the crystal lattice are selected while the incorrect molecules are ignored. We will write a custom essay sample on Recrystallization of Benzoic Acid Outline Essay Sample or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page ensuing in a pure solid – Depends on: 1 ) solubility of the compound 2 ) differences in solubility of the desired solutes A ; drosss dissolved in the dissolver – Common Solvents Used:Solvent| Formula| Polarity| Boiling Pt. ( oC ) |Water| H2O| Very Polar| 100|Ethanol| CH3CH2OH| Polar| 78|Methanol| CH3OH| Polar| 65|dichloromethane| CH2Cl2| Slightly Polar| 40|Diethyl ether| ( CH3CH2 ) 2O| Slightly Polar| 35| IV. Experimental0. 100 g of powdery impure benzoic acid. 1 little piece of boiling bit. and 2 milliliter of distilled H2O were added severally into a vial. While twirling the mixture invariably. it was so heated to boiling until the benzoic acid had dissolved wholly in the H2O. The solution was so cooled by adding a few beads of distilled H2O. A pinch of activated C was added after. Then. the mixture was heated to boiling for a 2nd clip for a few proceedingss until the volume of the mixture had decreased by about 1 milliliters. The hot mixture was so instantly poured into a 5mL disposable syringe ( without the acerate leaf ) with a cotton stopper indoors at the underside of the syringe tubing to move as a filter. The Piston of the syringe was so pressed to coerce the liquid through the filter. roll uping the filtrate into another phial. The hot concentrated solution or filtrate was so cooled to room temperature before sealing the vial and slow-cooling it in an ice bath. The crystals yielded were collected in a pre-weighed filter paper on a 50 milliliter beaker ( as an jury-rigged filter paper support ) . Small increases of ice-cold H2O were added to rinse the phial to acquire the staying crystals. The filter paper incorporating the gathered crystals was so carefully taken out from the filter system. so was folded with the crystals inside. and so pressed in between folded tissue paper to squash out extra H2O. After leting the filter paper and crystals to dry up wholly. the filter paper with the crystals was weighed. The weight of the filter paper entirely was subtracted from the obtained weight to acquire the weight of the yielded crystals. Percent recovery was computed for by spliting the weight of the yielded crystals by the weight of the impure benzoic acid. V. ResultsFrom the 0. 100 g of the impure sample of benzoic acid. 0. 030 g of pure benzoic crystals was yielded. holding a percent recovery of 30 % . VI. DiscussionThe chemical equation for the reaction of benzoic acid with H2O is as follows: C6H5COOH ( aq ) + H2O ( cubic decimeter ) C6H5COO- ( aq ) + H3O+ ( aq ) .It is a reversible reaction allows the dissolved benzoic acid to recrystallize or travel back to its solid signifier as a purer compound. Water= appropriate or ideal dissolver for benzoic acid due to immense solubility difference in H2O. * indissoluble @ low temp 2. 1g of benzoic acid dissolves in 1L of H2O at 10oC * soluble @ high temp 68g of benzoic acid dissolves in 1L of H2O at 95oC The mixture invariably swirled as the mixture was being heated * additions rate of disintegration and information of the system * increasing the interaction between H2O and benzoic acid molecules. *The complete disintegration of benzoic acid led to a clear solution. Boiling chip- induces boiling – added to the mixture while @ ROOM temp– NOT boiling temp– to forestall spilling or boiling over Activated charcoal- used for decolorization– made up of finely separated C atoms w/ great surface country – adsorb the drosss from sol’n ( aka it causes drosss to attach amp ; be trapped onto the wood coal atom’s surface ) . – C atoms excessively BIG to go through thru filter paper minimizes drosss! *NOTE: Excessively much activated C loss of the pure substance. Filter syringe- used to increase pureness to filtrate out activated wood coal A ; other drosss on the cotton stopper Sol’n was filtered quickly to hold every bit small residue of benzoic acid crystals as possible yielded from crystallisation already taking topographic point as the temp. A ; solubility of the benzoic acid was diminishing. Slow chilling in an ice bath- to assist crystals set up in a finer undistorted molecular geometry. excepting drosss from the crys tal formation. In instance crystallisation doesn’t take topographic point while chilling usage SEED CRYSTAL * Its similar construction to the pure crystals will function as â€Å"source code† merely molecules that will suit absolutely in the lattice will crystallise. go forthing out drosss with a different construction. Complete drying of the filter paper and crystals minimize inaccuracy in consequences because the added mass of H2O while weighing affects or increases the % recovery. Formula for per centum recovery was used: % recovery= weight recovered benzoic acid x 100 weight impure benzoic acid VII. Answers to Questions1. List the belongingss of an ideal dissolver to execute the purification of an organic compound by the crystallisation technique. * fade out the solute @ high temperatures or boiling platinum* does NOT fade out solute @ depression or room temp.* either dissolves drosss ( @ room temp ) or NOT fade out them at all ( @ high temp ) so that drosss WON’T crystallize with solute A ; can be therefore removed by filtration. * Inert= should NOT respond with solute or there will be a lesser output of pure crystals due to molecular interaction * volatile so it can be easy removed from the solute crystals. 2. In sublimating by crystallisation from a dissolver. is it advisable to chill the solution easy or quickly? Explain. COOL SLOWLY so that crystals will organize in its most right A ; undistorted molecular geometry. go forthing drosss out from the crystal formation. *Rapid chilling will ensue a greater output in the terminal ( because drosss will hold been included ) . therefore taking to inaccurate consequences. 3. What advantages does H2O hold as a crystallisation dissolver? * non-flammable* safe and non-toxic* used for a broad scope of temperatures* high heat capacity and can fade out different substances * polar. therefore. it can fade out substances. particularly polar 1s. easy. 4. Solubility of benzoic acid in H2O: 0. 21g/ 100mL H2O at 10oC ; 0. 27g/100mL at 18oC ; 2. 75g/ 100mL at 80oC ; 6. 80g/ 100mL at 95oC. Two pupils crystallized 10 g samples of benzoic acid from H2O. the first dissolution benzoic acid at 80oC and filtrating at 10oC. the 2nd fade outing the acid at 95oC and filtrating at 18oC. Calculate the measure of H2O each pupil was required to utilize and the maximal recovery of benzoic acid possible in each instance. STUDENT A @ 80oC 10 g =2. 75 g sten milliliter 100mLx= 363. 636 milliliter H2O@ 10oC y gms = 0. 21 g vitamin D363. 636 milliliter 100mLy= 0. 7636g benzoic acid9. 24g benzoic acid9. 24g benzoic acid 10 g- 0. 7636g= Student B@ 95oC 10 g = 6. 80 g vitamin Dten milliliter 100mLx= 147. 058 milliliter H2O@ 18oC y gms = 0. 27 g vitamin D147. 058mL 100mL9. 60g benzoic acid acid9. 60g benzoic acid acidy= 0. 397 g benzoic acid 10 g- 0. 397g= 5. A Solid ( X ) is soluble in H2O to the extent of 1g per 100g of H2O at room temperature and 10g per 100g of H2O at the boiling point. a. How would you sublimate X from a mixture of 10g of Ten with 0. 1g of dross Y. which is wholly indissoluble in H2O. and 1g of dross Z. holding the same solubility features in H2O as X? Separating Yttrium 1. Dissolve the mixture in 100g H2O and furuncle to 100?C. Everything should fade out except for Y. 2. Cool mixture to room temperature3. Filter. This will divide dross Y from X and dross Z. Separating Z1. Add H2O up to 100mL to the filtrate.2. Heat to boiling ( 100oC )3. Slowly cool to room temp4. Filter the mixture. The filter paper residue= pure X crystals. *Formation of Z is undistinguished because it is merely 1g and has a different crystal construction than X. excepting Z from X’s crystallisation. 90 % or 9g of Ten will be obtained90 % or 9g of Ten will be obtainedB. How much pure Ten could be obtained after one recrystallization from H2O? 10g of X – 1g X dissolved ten 100 % =10 g of X *Solubilities of different solutes are independent of each other. therefore. 1 g of solutes X and Z would fade out at room temperature. c. How much pure Ten could be obtained after one recrystallization from a mixture of 10g of Ten with 9g of Z? * A = 1000g H2O to fade out 10g X @ room temp.A = 1000g H2O to fade out 10g X @ room temp.Ten and Z must be dissolved foremost. Solubilities of X and Z are independent of each other. Solid X. being the larger sum. is used as footing. 10g of X = 1g of TenA g H2O 100g H2O* B= 900g H2O to fade out 9g Z @ room temp.B= 900g H2O to fade out 9g Z @ room temp.Water must so be boiled until 900g of H2O is left to guarantee dross Z won’t dissolve and crystallise with X under room temperature. 9g of Z = 1g of OmegaB g H2O 100g H2O* C= 9g of X dissolved in900g H2O @ room temp. C= 9g of X dissolved in900g H2O @ room temp. Slowly cool the solution to organize X crystals.C g of X = 1g of Ten900g H2O 100g H2O 1 g of X crystallized1 g of X crystallized 10g X- 9g Ten dissolved= d. Based on the consequence obtained. what is suggested about the usage of crystallisation as a purification technique? Using crystallisation to divide and sublimate solid substances is non so efficient because of its heavy dependance on the substance’s solubility. doing it hard to divide substances of the same solubility and of important sums. VIII. Decision Recrystallization. although a common purification technique for its simpleness and utility. is non such an efficient method because it CAN’T: * sublimate non-solids* separate compounds whose constituents ( the chief constituent and dross ) have the same solubility due to recrystallization’s heavy dependance on solubility. particularly when both constituents exist in important sums * wholly sublimate the end-product IX. Mentions â€Å"Crystallization. † University of Colorado. University of Colorado. n. d. Web. 4 Feb. 2013 lt ; hypertext transfer protocol: //orgchem. Colorado. edu/CCCE/frame/images/handbook. pdf gt ; . â€Å"Recrystallization. † Hartnell College. Hartnell College. n. d. Web. 17 Dec.2012. lt ; hypertext transfer protocol: //www. hartnell. edu/faculty/shovde/chem12a/lablecturehandouts/recrystallizationlecture. htm gt ; . â€Å"Recrystallization: a purification technique for solids. † German Jordanian University. German Jordanian University. n. d. Web. 17 Dec. 2012. lt ; World Wide Web. gju. edu. jo/admin/s32files/3-RECR. physician gt ; .

TASTE OF SALT essays

TASTE OF SALT essays This story takes place in the slums of Haiti. In a hospital bed, lays Djo, beaten and hardly alive. Djo is an innocent victim of a political firebombing. The Macoutes, or the bad guys, pour gasoline in and on the camps of the followers of Aristide. They rob and slaughter the members of the camps. He is also a vital member of Father Jean Bertrand Aristides. Father Aristide, or as the local Haitians call him, Titid, sends Jeremie to Djo. She has a tape recorder with her. Jeremie is there to listen and to tape Djos story as from a little child to present date. Djo tells her of how he was raised in Cit Soleil, a very poor and large part of Port-au-Prince. Djo lived in a one room house witch was a stall for a motor car, or a garage. He lives with his mother, father, two sisters and two brothers, also his cousin Lally. All of the children sleep in one bed together and the mother and father have a bed of their own. His family is very poor, just like the rest of the citizens of Port-au-Prince. During the story, Djo finds Aristide. Aristide, or as Djo calls him, Titid, is the first democratically elected president of Haiti. He is a Salesian priest whose first and continuing ministry has been among the poor of Port-au-Prince. Father Aristide wants Haiti to become better. He wants people to live decent lives, with food everyday, and clean water to drink. People like Djo and Jeremie are the one who try to overthrow military dictatorship in Haiti. I think that Djo is a very determined man. He was poor all of life and didnt just feel bad for himself. He rised above it to actually do something about the terrible case of poverty in his country. Djo almost gave his life to overthrow the militia government. Everyone who heard his story, because it was amazingly full of courage loved him. Salt tastes rancid and bitter. So, Francis Temple relates the taste of salt with the lives of the Haitians. In other words, &q...

CASE BRIEFING Essay Example | Topics and Well Written Essays - 250 words

CASE BRIEFING - Essay Example Hence, MGM sought damages while respondents claimed that they did not control or monitor the use of the software (Casenote Legal Briefs, 2009). 3. History: The district court and the court of appeals both had ruled the decision in favour of MGM with respect to copyright infringement but did not hold the respondents responsible for it and summary judgement was granted. MGM had then decided to move to Supreme Court appealing for summary judgement in their favour (Casenote Legal Briefs, 2009). 6. Reasoning: The evidence that MGM produced clearly showed that the respondents marketed and sold the software as tool that could be used to share copyrighted material. The respondents had a clear purpose of making profits from the violation of the act from the users. The respondents had actively promoted pirating. File sharing tools are not illegal and the manufacturers of the tools are not responsible for how the users use the tool until and unless the manufacturer actually encouraged infringement. I am of the opinion that the respondents encouraged sharing of copyrighted material on their software. Yes, the respondents cannot control how their software will be used once it is sold but if they generate a sale by promoting the software as a tool to share copyrighted material, then the main purpose of the software will be pirating. Hence, respondents should be held responsible for copyright infringement. Unlike the Sony Corp v. Universal Studios, the only use of software is to share files which can be copyrighted or not. In Sony, VCRs could only play already copyrighted content and in no way contributed directly to

Movement and Protest Essay Example | Topics and Well Written Essays - 750 words

Movement and Protest - Essay Example Instead, the activists champion and maximize the safety and security of all participants, together with their families and property. Their specific form of public complaint by the group is a protest, disobedience, or direct action. The resistance movement was organized around a popular #hashtag known as #occupywallstreet. The resistance movement was founded on the mentality that rebellion is indeed a good thing. During the President’s Day in 1787, one President Thomas Jefferson said, â€Å"God forbid we should be twenty years without a rebellion. What country can preserve its liberties if the rulers are not warned from time to time that their people preserve the spirit of resistance?† Later in 1861, at the Presidential Inaugural address, President Abraham Lincoln â€Å"This country, with its institutions, belongs to the people inhabit it. Whenever they shall grow weary of the existing government, they can exercise their constitutional right of amending it, or their revolutionary right to dismember, or overthrow it.† During the President’s Day in 1885, President Ulysses S. Grant said, â€Å"The right of Revolution is an inherent one. When people are oppressed by their government, it is a natural right they enjoy relieving themselves of the oppression if they are strong enou gh, either by withdrawing from it or by overthrowing it and substituting a government more acceptable.† In 1962, President John F. Kennedy said, â€Å"Those who make peaceful revolution impossible will make violent revolution inevitable." Today, this day has been given the hashtag, #thepresidentsday. Speaking early this year (2015), President Barrack Obama commented, â€Å"We cannot ignore the fact that our government originated in a revolution and were legitimate only if overthrow by force can sometimes be justified. That circumstances sometimes justify it is not.†