Composition and Seperations Essay

At the point when a piece of popcorn is warmed, pressure fabricates and, contingent upon the percent of water in the portion, the bit busts open and popcorn is created. The level of water in every portion contrasts between brands of popcorn. On the off chance that the steam delivered neglects to pop the portion, the piece turns out to be hard and consumes. The reason for Part 1, â€Å"Popcorn Composition†, of the â€Å"Composition and Separations Lab was to decide if premium popcorn brands show attractive characteristics when estimated and contrasted and less expensive brands of popcorn. The trial pertinence of Part 1 of the examination was to exhibit the impacts of water in a popcorn portion when warmed and changed over to warm. Contrasts in water rate decide if the portion will blast and make popcorn. In Part 2, â€Å"Separating a Solid Mixture†, the design was to work with provisions in the lab to isolate a strong blend of popcorn, sand, salt and iron filings into the four separate segments to in the end become familiar with the percent structure of the strong blend. By building up an arrangement to isolate the blend, the gathering ought to have wound up with four separate things with loads that additional up to the first weight of the blend. The test pertinence of Part 2 of the test was to figure out how to isolate every segment in a four section strong blend from one another. Technique: To some extent 1 of this week’s lab three popcorn bits of a one brand were given to each gathering. A Bunsen burner was set up by each gathering and the three parts were each weighed independently on an electric parity. The Bunsen burner was then lit adhering to the guidelines given. (ch185) A 100mL measuring glass was acquired and loaded up with a half inch of clean sand. The measuring glass was set on a ring stand and one part of popcorn was lowered into the sand. The container was then secured with a watch glass and warmed over the Bunsen burner until the bit popped. Subsequent to popping, the piece was expelled and gauged and the dampness content was estimated. This methodology happened for each of the three bits. After the dampness substance of each of the three portions were estimated, a normal was concluded for the three and composed on the board. Every one of the other four gatherings additionally composed their midpoints for their individual image on the board to give the class a superior comprehension of the distinctions in dampness content for every one of the five brands. Partially 2 of this week’s lab, a 50mL measuring glass was loaded up with a strong blend comprising of popcorn, sand, salt and iron filings. The gathering at that point got the mass of the whole blend and started outlining an arrangement to isolate the blend appropriately into its unique four substance. First the gathering isolated the popcorn from the blend by utilizing a drainer. The popcorn was then gauged. Second, the iron filings were isolated utilizing a magnet in the wake of pouring the rest of the blend onto a bit of paper. After the magnet gathered all iron, the iron was scratched into a measuring glass and the weight was recorded. The third and last partition utilized a recepticle and a channel paper. The channel paper was gauged and placed into a channel that spilt into the recepticle. The staying salt/sand blend was then filled the channel paper utilizing water to disintegrate the salt. After the arrangement was placed into the channel paper and the salt had broken up, the channel paper and sand was dried and afterward gauged. In the wake of taking away the channel paper weight from the heaviness of the channel paper and sand together, the heaviness of the sand was known. When you had the heaviness of the sand, iron and popcorn, the heaviness of the salt was found by taking away the three consolidated loads from the first weight of the blend. To discover the percent structure of every segment, the heaviness of every wa isolated by 100 and, at long last, every segment percent signified 100% of the underlying blend. Results/Data/Calculations: Section 1: Each gathering decided the dampness level of their image of popcorn. Table 1 shows the dampness substance of each brand. Table 1: Moisture Percentage of Popcorn Brands Gathering Number| Popcorn Brand Used| Percent Moisture| 1| Act III| 6.24 %| 2| Food Club| 8.35 %| 3| Jolly Time| 12.2 %| 4| Orville Redenbacher| 7.47 %| 5| Pop Perfect| 6.22 %| Happy Time popcorn was estimated for weight and the dampness content was then estimated. Table 2 shows the underlying loads, last loads, dampness substance and percent dampness of every one of the three preliminaries performed. Table 2: Moisture Percentage by Weight of Jolly Time Popcorn Kernels Kernel| Initial Weight (g)| Final Weight (g)| Moisture Content| % Moisture| 1| 0.105 g| 0.086 g| 0.019 g| 17.8 %| 2| 0.138 g| 0.140 g| - 0.003 g| - 1.89 %| 3| 0.113 g| 0.106 g| 0.007 g| 6.55 %| AVERAGE| 0.109 g| 0.096 g| 0.013 g| 12.2 %| Test Calculations: Find weight= (cupcake holder + part †cupcake holder) = (.263 g †.177 g) = 0.086 g Dampness Content= Initial weight †last weight = 0.105 g †0.086 g = 0.019 g % Moisture= Moisture content x 100 Introductory load of bit = 0.019 g = 17.8% 0.105 g Normal % dampness = 17.8 + 6.55 = 12.2% 2 Section 2: The weight and in the long run rate sythesis was measure in a blend of corn, iron, sand and salt and afterward with every part exclusively. Table 3 shows the weight and % creations. Table 3: Percent creation of Mixture Material| Weight (g)| % Composition| Full Mix| 42.2 g| 100 %| Corn| 3.26 g| 7.79 %| Iron| 19.0 g| 45.0 %| Sand| 15.7 g| 32.5 %| Salt| 6.25 g| 14.8 %| Test Calculations: Percent Composition:Initial Weight x100 Absolute Mixture Weight Recepticle with nothing: 59. 95 g Recepticle with blend: 102.1 g W/Mix:102.1 g W/O Mix: †59.95g 42.98 g Conversation: The test to some extent 1 was done to show that even slight contrasts in dampness content in popcorn have a major effect with regards to the popcorn’s â€Å"popping† capacities. Prior to the test, the dampness substance and its impact on popcorn were obscure. After the examination each gathering left with the information on dampness content in both favored brands and modest brands of popcorn. This investigation gave knowledge into the significance of precision for popcorn organizations relating to the dampness content in every part. The investigation to some extent 2 was performed to show that most strong blends can be isolated if utilizing the correct apparatuses. Each gathering needed to propose an answer for isolating the blend and afterward gauging every one of the four parts thereafter to finish up on the off chance that they indicated the underlying load of the strong blend. This test permitted understudies to think carefully to isolate any strong blend that they interact with, which will be useful for the future in this lab and others. All through the two pieces of this investigation a few explicit blunders were found and managed. To a limited extent 1 of this investigation a few popcorn pieces were singed and didn't pop. These parts may have influenced our investigation by giving us bogus information, as we did exclude these pieces in any last information. With consumed popcorn pieces, we were indicated that the dampness content in the popcorn brand given may have brought about one of the â€Å"cheap† brands given. To a limited extent 2 of our analysis, the underlying weight should be taken before isolating any piece of the blend. Tragically, the underlying weight was skipped before the popcorn was isolated. The popcorn at that point must be returned to the blend and the blend was then weighed for the underlying weight. This may have influenced the last information, despite the fact that it was a little mistake. To some extent 2 another blunder happened when the gathering started to isolate the salt and sand in an inaccurate way. This, nonetheless, didn't influence last information, as the salt would have been disposed of at any rate. Ends: The objectives in this examination for section 1 were to decide the dampness content in a brand of popcorn, contrast the given brand and others in the lab and afterward see whether dampness content influences the ‘popping’ or corn and which brand or brands has a superior probability of popping (for example favored versus modest brands). To a limited extent 2 of the examination the objectives were to isolate a strong blend and afterward discover the percent arrangement of every one of the four materials inside the blend. The normal dampness rate for Jolly Time popcorn was 12.2 %. To get to this point, the gathering popped three separate parts and found the dampness rate for each and afterward arrived at the midpoint of them. The percent piece for section 2 of the strong blend was 7.79 % for corn, 45.0 % for iron, 32.5 % for sand and 14.8% for salt. These estimations meant the 100% strong blend and the loads included accurately. References: Ch185. The most effective method to Light and Adjust a Bunsen Burner. http://ch185.semo.edu/labsafe/bunsen.html (got to Feb 12, 2013). Structure and Separations. http://linus.chem.ku.edu/genchemlab/184SP13/Download184_Labs/Composition%20and%20Separations%20Chem%20184%20Spring%202013.pdf (got to Feb 12, 2013) Guidelines for Laboratory Reports http://linus.chem.ku.edu/GenChemLab/184SP13/guidelines%20for%20lab%20reports.htm (got to Feb 12, 2013)

Lolita by Vladimir Nabokov Analysis Essay Example for Free

Lolita by Vladimir Nabokov Analysis Essay Vladimir Nabokov’s decision of subject in his novel Lolita stunned perusers, yet that was basically why he picked it. Beetz, states that Nabokov’s first motivation for the novel originated from a news tale about a primate â€Å"‘who following quite a while of urging by a researcher, delivered the primary drawing at any point charcoaled by a creature: this sketch demonstrated the bars of the poor creature’s cage’ Nabokov said. The same number of pundits have commented Lolita isn't about sex yet about affection. Much more it is about fixation and the dangerous force it can hold over the lives of its victims.†(Beetz 2481) Also with out the stun estimation of Lolita’s racy subject of the â€Å"love story† between a man and his multi year old advance little girl, the book in all probability would not have become as acclaimed as it seems to be. As Serafin states, Lolita turned out to be famous underground after it was prohibited in Europe. The no-no of it being prohibited blended in with Nabokov’s shining mind made Lolita a sensation.(338) As Hart says in the 1950’s people groups perspectives towards sex were still strict and conservative.(158) By abusing the shame of the infringement of the last sexual untouchable, the connection between a grown-up and kid, Nabokov had the option to truly show the degree of the intensity of captivation, love and fixation. As Nabokov appears in his novel Humbert recognizes what he is doing to Lolita isn't right, yet his deep longing for her drives him to damage his own ethics. He even utilized ethics to attempt to legitimize his activities, â€Å"The moral sense in humans is the dutyWe need to pay on mortal feeling of beauty†(Nabokov 300) In this statement Humbert weakens himself into deduction he has an ethical commitment to welcome the magnificence that is Lolita, when actually he has an ethical commitment to disregard Lolita and permit her to have an ordinary adolescence. Another statement where Nabokov shows how Humbert’s fixation controls him is simply the accompanying; â€Å"I felt glad. I had taken the nectar of a fit without debilitating the ethics of a minor. Definitely no damage done.†(Nabokov 65) In this statement he is alluding to â€Å"pleasuring him self† while close to Lolita with out really contacting her. The very idea of his activities show his edginess and it before long become clear that Humbert’s bent dreams won't satisfy his fixation for long and that he will follow up on it and â€Å"impair the ethics of a minor†. By utilizing the stun to perusers of a connection between a grown-up and a kid, Nabokov effectively had the option to show the degree of what fixation and love can drive an individual to do. Humbert’s fixation lead him to demolish the lives of himself, Clare Quilty and the youth of Lolita. Nabokov pick his untouchable subject for Lolita to build the effect of the character’s activities as driven by his own fixation.