Catalase Lab essays

Catalase Lab papers The two reasons for this trial were to see the impact of compound fixation on catalyst action and to see the impact of temperature on protein action. Compounds are the most significant piece of living cells. Cells cannot work or complete there employments without them. Chemicals act like impetuses in living cells. Impetuses accelerate synthetic responses yet stay unaltered by it. Compounds are made of protein. Chemicals are now and then called protein impetuses. There is a particular protein for each concoction response in the body. The synthetic concoctions that chemicals respond in are called substrates. A compound plays out its impact by consolidating briefly with its substrate. Thus, a substrate turns out to be progressively responsive. The pace of the development of items increments. Catalase is available in many cells and high focuses are found in liver and platelets. Hydrogen peroxide is shaped as a side-effect of cell breath in cells yet water is the most widely recognized one. Hydrogen peroxide is poisonous and would murder cells in the event that it were not quickly separated or evacuated. So poisonous amassing doesn't occur, catalase separates hydrogen peroxide into water and oxygen. This response is quick. Every catalase is fit for changing over 5,000,000 atoms of hydrogen peroxide every moment at 0â ° C. I anticipate that the expansion in temperature will impact the protein movement by making it higher in light of the fact that our bodies work better at a high temperature so it bodes well that the catalysts that are in us would. I f my forecast is right, I will have demonstrated that protein movement is higher at higher temperatures. I likewise foresee that more grouping of proteins will bring about higher chemical action. In the event that my forecasts are right, I will have demonstrated that compound movement is higher with higher catalyst focus. See lab freebee entitled Investigating the Enzyme, Catalase. ... <!

How A College Essay Grader Can Help You

How A College Essay Grader Can Help YouWriting a college essay is a great experience that all students should experience. You want to make it a memorable experience by creating a lasting impression in the minds of your readers. By using the use of a college essay grader, you can ensure that your essay has a professional finish.Essay writing is an art form that takes a lot of time and effort to perfect. It can be quite frustrating when you find that your essay has errors in it that you did not notice. This is especially true when you have spent a lot of time editing it and will submit it to a school for the first time.However, if you have learned to maintain a professional appearance throughout your work and know the proper way to proofread, then you are well on your way to writing a successful essay. The use of a college essay grader is just one way to help you achieve this. For one thing, this type of software can help you eliminate errors and make sure that your essay flows well.Th is will help you avoid having an essay that sounds unprofessional. Not only will your essay be accepted but it will also be very impressive. Your essay will be written in such a way that will be accepted for publication and will even make you look like a professional.If you have ever wanted to write an essay, but did not have any experience, then you may want to consider using a college essay grader. You can spend a lot of time creating your essay and not get any recognition for it. However, when you use a college essay grader, you will have a great time writing the paper and will get better results.When you use a college essay grader, you will find that it works well on computers as well as on hand-held devices. Thistype of software is small enough to fit into your pocket, so you can take it wherever you go. It works by letting you type in your essay and it will scan through the text looking for errors.It will then tell you where the errors are, and you can then fix them. Once you have corrected the errors, you can then continue with your project. Using a college essay grader can be beneficial to everyone, since it will provide you with the results of your efforts to help you achieve a high-quality paper.Overall, using a college essay grader is a smart way to write a great essay. It will allow you to proofread it, making sure that you don't make any mistakes and it will also help you improve your skills as a writer. Using this type of software can help you write a quality paper and make your readers impressed with your quality of work.

What is Amulet Essay Example For Students

What is Amulet Essay A talisman is a little article that an individual wears, conveys, or offers to a god since the individual accepts that it will mystically give a specific force or type of insurance. The conviction that an image, structure, or idea gives assurance, advances prosperity, or brings good karma is normal to all social orders: in our own, we ordinarily wear strict images, convey a most loved penny, or a hares foot. In antiquated Egypt, special necklaces may be conveyed, utilized in neckbands, wristbands, or rings, and㠢â‚ ¬Ã¢â‚¬ especially㠢â‚ ¬Ã¢â‚¬ placed among a mummys swathes to guarantee the expired a protected, solid, and beneficial life following death. We will compose a custom article on What is Amulet explicitly for you for just $16.38 $13.9/page Request now Egyptian talismans worked in various manners. Images and gods by and large presented the forces they speak to. Little models that speak to referred to objects, for example, headrests or arms and legs, served to ensure those things were accessible to the individual or that a particular need could be tended to. Enchantment contained in an ornament could be comprehended not just from its shape. Material, shading, shortage, the gathering of a few structures, and words said or fixings scoured over the special necklace could all be the hotspot for enchantment giving the holders wish. Little talismans of faience, stone, artistic, metal, or glass, were normal belongings in old Egypt. They were regularly designed as divine beings and goddesses or of creatures holy to those gods. Special necklaces gave their proprietors supernatural insurance from a wide assortment of ills and malevolence powers, including infection, barrenness, and passing in labor. They were regularly furnished with circles so they could be hung and worn like a jewelry. A few talismans were made to put on the body of the perished so as to secure the spirit in the great beyond. Vervet Monkey Vervet monkeys Cercopithecus aethiops are portrayed as outlandish family unit pets as ahead of schedule as the Old Kingdom, strolling on a lead adjacent to the honorable tomb-proprietors prize dogs. In the New Kingdom one is regularly indicated tied underneath the tomb proprietors seat, however is it still a portrayal of a pet or an emblematic delineation to ensure the tomb proprietors sexual ability in existence in the wake of death? By the New Kingdom, special necklaces of vervets were without a doubt worn so their wearer may acclimatize the animals notable sexual conduct. It is additionally a direct result of this imagery that vervets include as enriching components of restorative items. The animal is habitually delineated hunching down with its front paws up to its jaw, once in a while holding a little bit of nourishment to its mouth or probably playing an instrument. Ornament of the Goddess Taweret, the hippopotamus goddess, was the goddess of ladies and youngsters and, in particular, existing apart from everything else of labor. With her adjusted midsection and pendulous bosoms showing a pregnant female, Taweret was related most explicitly with labor, and she was regularly portrayed looking out for the birthing bed. Taweret talismans would have been worn during life by ladies and kids. In the tomb, they were put on the body of the expired as an image of resurrection. The Taweret and other firmly related goddesses were made from a mixing of lion, hippo, crocodile, and human properties. The three creatures were the absolute fiercest species found in old Egypt and consolidating their qualities delivered a most strong divinity and subsequently talisman. Tawerets specific obligation was the insurance of ladies during pregnancy and labor. She is frequently depicted inclining toward a sa image. Her portrayal was once in a while utilized on tomb dividers or funerary gear to secure the expired during resurrection. This incredible, defensive goddess of labor was a fairly startling figure who was frequently delineated in the organization of Bes, the defender overshadow god Bes A god of either African or Semitic cause; came to Egypt by Dynasty XII. Delineated as an unshaven, savage-looking yet amusing diminutive person, demonstrated full-face in pictures. Worshipped as a divinity of family delights, for example, music, great nourishment, and unwinding. Likewise a defender and performer of kids. Nonetheless, numerous writings point to the possibility that Bes was a horrible, avenging divinity, who was as quick to rebuff the mischievous, as he was to divert and charm the exemplary .u3db6b7b6bbd3266bb9a7912f8b9cc2a4 , .u3db6b7b6bbd3266bb9a7912f8b9cc2a4 .postImageUrl , .u3db6b7b6bbd3266bb9a7912f8b9cc2a4 .focused content zone { min-tallness: 80px; position: relative; } .u3db6b7b6bbd3266bb9a7912f8b9cc2a4 , .u3db6b7b6bbd3266bb9a7912f8b9cc2a4:hover , .u3db6b7b6bbd3266bb9a7912f8b9cc2a4:visited , .u3db6b7b6bbd3266bb9a7912f8b9cc2a4:active { border:0!important; } .u3db6b7b6bbd3266bb9a7912f8b9cc2a4 .clearfix:after { content: ; show: table; clear: both; } .u3db6b7b6bbd3266bb9a7912f8b9cc2a4 { show: square; progress: foundation shading 250ms; webkit-change: foundation shading 250ms; width: 100%; mistiness: 1; change: darkness 250ms; webkit-change: obscurity 250ms; foundation shading: #95A5A6; } .u3db6b7b6bbd3266bb9a7912f8b9cc2a4:active , .u3db6b7b6bbd3266bb9a7912f8b9cc2a4:hover { murkiness: 1; change: haziness 250ms; webkit-change: haziness 250ms; foundation shading: #2C3E50; } .u3db6b7b6bbd3266bb9a7912f8b9cc2a4 .focused content region { width: 100%; position: relative; } . u3db6b7b6bbd3266bb9a7912f8b9cc2a4 .ctaText { fringe base: 0 strong #fff; shading: #2980B9; text dimension: 16px; textual style weight: intense; edge: 0; cushioning: 0; content design: underline; } .u3db6b7b6bbd3266bb9a7912f8b9cc2a4 .postTitle { shading: #FFFFFF; text dimension: 16px; text style weight: 600; edge: 0; cushioning: 0; width: 100%; } .u3db6b7b6bbd3266bb9a7912f8b9cc2a4 .ctaButton { foundation shading: #7F8C8D!important; shading: #2980B9; outskirt: none; outskirt span: 3px; box-shadow: none; text dimension: 14px; textual style weight: striking; line-stature: 26px; moz-outskirt sweep: 3px; content adjust: focus; content enrichment: none; content shadow: none; width: 80px; min-tallness: 80px; foundation: url(https://artscolumbia.org/wp-content/modules/intelly-related-posts/resources/pictures/basic arrow.png)no-rehash; position: total; right: 0; top: 0; } .u3db6b7b6bbd3266bb9a7912f8b9cc2a4:hover .ctaButton { foundation shading: #34495E!important; } .u3db6b7b6bbd3266bb9a7912f8 b9cc2a4 .focused content { show: table; stature: 80px; cushioning left: 18px; top: 0; } .u3db6b7b6bbd3266bb9a7912f8b9cc2a4-content { show: table-cell; edge: 0; cushioning: 0; cushioning right: 108px; position: relative; vertical-adjust: center; width: 100%; } .u3db6b7b6bbd3266bb9a7912f8b9cc2a4:after { content: ; show: square; clear: both; } READ: B.J. Rice EssayWith a hippopotamus head, a crocodile tail, lion arms and legs, human bosoms, and a swollen tummy, she frightened off any negative spirits who may hurt the child. Special necklaces with her picture were regularly worn by eager moms. Third Intermediate Period à ¢Ã¢â€š ¬Ã¢â‚¬Å" 21st Dynasty Art and Culture With the debilitating of concentrated illustrious expert in the Third Intermediate Period, the sanctuary organize developed as a predominant circle for political desires, social distinguishing proof, and creative creation. The significance of the sanctuary circle acquired, with pretty much perceivability, for the resulting first thousand years. Egypt again partitioned; one tradition manages in Nile Delta, offering capacity to devout clerics of Amun at Thebes. Moderately small structure occurred during the Third Intermediate Period, yet the formation of elaborately and mechanically creative bronze and valuable sanctuary sculpture of divine beings, rulers, and extraordinary sanctuary authorities prospered. Sanctuary regions, with the sacredness and wellbeing they offered, were supported entombment locales for regal and non illustrious people the same. Gold and silver illustrious entombment gear from Tanis shows the highest caliber of craftsmanship. Non imperial final resting places and papyri bear expand scenes and writings that guaranteed the resurrection of the perished. New accentuation was set on the ruler as the youngster/child of a perfect pair. This topic and other regal subjects are communicated on a progression of sensitive help enriched vessels and other little items predominantly in faience, yet in addition of valuable metal. A similar topic is showed structurally in the rise and advancement through the main thousand years of the mammisi, or birth house, a subordinate sanctuary where the introduction of an adolescent god related to the sun god and the ruler was commended. In Egypt, the Third Intermediate Period was a period of disturbance and monetary decrease. Control split between pharaohs reigning in the Delta and the ministry of the sanctuary of Amun at Karnak. In Egyptian craftsmanship, there was a solid feeling of request, structure, and imagery; certain things held certain implications. The compositions particularly were exceptionally adapted and they recounted to a story. The style of craftsmanship in Egypt didnt change for a long time to some degree on the grounds that the craftsmen essentially complied with the standards set out for those Amulets are things worn to secure their wearer by their strict affiliations, a strict proportionate to love. In antiquated Egypt, any thing of gems is probably going to have some amuletic work notwithstanding its tasteful, monetary, and social qualities. The strict hugeness may have fluctuated from client to client, and for every person as per the second in their lives. It is hard to evaluate the general significance of the amuletic or strict viewpoint against these different parts of the thing worn. In Egyptology, the word talisman is accordingly commonly saved for real embellishments of unambiguous strict structure or setting. In correlation, the two talismans had supernatural forces and both had extraordinary controls over birth the vervet was for the either living or dead. Taweret Hippopotamus goddess of ladies and kids and in particular existing apart from everything else of labor and set on the perished as an image of resurrection. The vervet monkey filled in as a sexual sneak ness in the great beyond of the perished.

University Healthcare System Innovative Applications - 825 Words

United Americas University Healthcare System: Innovative Applications (Essay Sample) Content: Innovative ApplicationsStudents NameUniversityTutorDateInnovative ApplicationsIntroductionThe materialization of EHR has called for the utilization of ground-breaking equipments to facilitate the evolution to electronic patients records. Computer Assisted Coding using Natural language processing (NLP), Voice Recognition, and Document Imaging applications are some of the technology providers that are falling back for advancing medical upshots and improving data capturing techniques. For proper and efficient collection, maintenance, and use of these innovative technology providers, the Chief Information Compliance office has to plan to set up extensive policies, procedures, and data architectural models for the enterprise.PoliciesIts a responsibility of the United Americas University Healthcare System staff to preserve and defend the privacy and safety of Electronic Health Record (EHR), so as to guarantee the patients confidentiality and privacy rights.The United Americ as University Healthcare System will launch and maintain a Computer Assisted Coding application and data capture applications, and monitor and maintain confidentiality measures all the way through the association.The entire IT sectors in each and every health care system shall review, yearly, their operational strategies and guiding principles, and assess the network planning and design of the Computer Assisted Coding application, to officially verify that the suitable safety and operational measures that have been placed into practice. This assessment shall be performed internally by IT security departments on every occasion. In case of any complication or difficulty in bypassing some applications components, the office shall utilize a certified consultation firm to supplement the domestic processes.The United Americas University Healthcare System (UAUHS) has employed policies and measures, with regard to Electronic Health Record (EHR), modified to adhere to the requirements of all national, regional and voluntary recognized firms for the enhancement of patients restricted medical information using Computer Assisted Coding application.The United Americas University Healthcare System coffers the right to amend its procedures and policies. As soon as alterations are made, the UAUHS shall punctually inform and instruct UAUHS acquaintances and other human resources regarding the alterations. The staff and the associates are liable for obeying and acting in accordance with these policies and measures.ProceduresThe Chief Compliance Officer shall: Conduct the installation and guide the maintenance of Computer Assisted Coding and data capture applications; build up execution strategy and financial plans to support the goals and policies; establish the methods and measures for achieving the objectives of the Computer Assisted Coding and data capture applications purposes and; administer the safety, use, and maintenance measures.Project ApolloLawsonData Architectural ModelDiagnosis Time ManagementWorkforceProviderCatha LabFacilityCostFreckleCensus SurveyEncounterBad DeptProviderPatientEnterprise Data ModelProcedureHousekeepingVoice Recognition and document imaging applicationComputer Assisted CodingCoding semanticsLanguage processingCodesPathsRules Statistics MedicalConceptsRules TextCACClinical OntologyEnterprises wide policies for collection, use, and maintenance of health care dataData can only be collected once theres a lawful and reasonable business function associated with UAUHS planned goal. Lawful and reasonable business functions for collecting data take in however arent partial to: Provision of secure and first-rate patients management and cure; medical facilities management, assessment, and valuation; fiscal and workforce administration; governmental necessities; underneath research study.Information collections have to be planned to maximize their value to provide numerous requirements, be it interior or exterior to UAUHS.Data captur e technologies and De...

How to Observe the Lyrid Meteor Shower

Every April, the Lyrid meteor shower, one of many yearly meteor showers, sends a cloud of dust and tiny rocks the size of a grain of sand hurtling to Earth. Most of these meteors vaporize in the atmosphere before reaching our planet. Key Takeaways The Lyrid Meteor shower, so named because it appears to stream from the constellation Lyra, occurs every April 16 to 26th with the peak taking place on April 22 into April 23Observers may see between 10 to 20 meteors per hour in a normal year, but during the heavy peaks that occur every 60 or so years, dozens or even hundreds of meteors may be visibleComet 1861 G1/Thatcher is the source of dust particles that become Lyrid meteors When to See the Lyrids A wonderful thing about the Lyrids is that they arent just a one-night occurrence.  They begin around April 16 and last until April 26th. The peak of the shower occurs on April 22, and the best time for viewing is after midnight (technically early  morning on the 23rd). Observers can normally expect to see anywhere from 10 to 20 flashes of light per hour, all streaming from the area near the constellation Lyra. At that time of year, Lyra is best visible in the hours after midnight on the 22nd.   Tips for Observing the Lyrids The best advice for watching the Lyrids shower is true for almost any meteor swarm. Observers should try to watch from a dark-sky site. If thats not possible, then its best to at least get out of the glare of nearby lights. Chances of seeing the shower are also much better if theres not bright moonlight. On nights when the Moon is full and bright, the best choice is to go out around midnight and look for meteors before the Moon rises. To see the Lyrids, observers should keep an eye out for meteors that look as though they have originated from the constellation Lyra, the Harp. In reality, the meteors dont actually come from these stars; it merely looks that way because the Earth passes through the stream of dust and particles, which appears to be in the direction of the constellation.  Luckily for meteor watchers, Earth passes through many such streams throughout the year, which is why we see so many meteor showers. Looking at an incoming meteor descend through Earths atmosphere, as seen from the International Space Station. NASA What Causes the Lyrids?   The meteor shower particles that create the Lyrids are actually the debris and dust left behind from the Comet 1861 G1/Thatcher.  The comet orbits the Sun once every 415 years and sheds a great deal of material as it passes through our solar system. Its closest approach to the Sun brings it to about the same distance as Earth, but its most distant point is way out in the Kuiper Belt, 110 times the distance between Earth and the Sun. Along the way, the comets path experiences the gravitational pull of other planets such as Jupiter. That disturbs the dust stream, with the result that approximately every sixty years, Earth encounters a thicker-than-usual part of the comets stream. When that happens, observers might see as many as 90 or 100 meteors per hour. Occasionally a fireball streams through the sky during the shower, indicating a piece of cometary debris thats somewhat larger—perhaps the size of a rock or a ball.   Other well-known meteor showers caused by comets are the Leonids, caused by Comet 55P/Tempel-Tuttle, and Comet P1/Halley, which brings material to Earth in the form of the Orionids. Did You Know? Friction between the gases that make up our atmosphere and small particles (meteors) causes meteors to heat up and glow. Typically, the heat destroys them, but occasionally a larger piece survives and lands on the Earth, at which point the debris is called a meteorite.   The most significant outbursts of Lyrid meteors in recent times were recorded starting in 1803.  Thereafter, they occurred in 1862, 1922, and 1982.  If the trend continues, the next heavy outburst for Lyrid watchers will be in the year 2042.   A Lyrid meteor as seen by an allsky camera studying the sky in April 2013. MSFC Meteoroid Environment Office   The History of the Lyrids People have been seeing meteors from the Lyrid shower for well over two thousand years. The first known mention of them was made in the year 687 BCE, recorded by a Chinese observer. The largest known Lyrid shower sent an amazing 700 meteors per hour through Earths skies. That occurred in 1803 and it lasted for several hours as Earth plowed through a very thick path of dust from the comet.   Watching isnt the only way to experience meteor showers. Today, some amateur radio operators and astronomers track Lyrids and other meteors by capturing radio echoes from meteoroids as they flash through the sky. They tune by tracking a phenomenon known as forward radio scattering, which detects pings from the meteoroids as they strike our atmosphere. Sources â€Å"In Depth | Lyrids – Solar System Exploration: NASA Science.† NASA, NASA, 14 Feb. 2018, solarsystem.nasa.gov/asteroids-comets-and-meteors/meteors-and-meteorites/lyrids/in-depth/.NASA, NASA, science.nasa.gov/science-news/science-at-nasa/1999/ast27apr99_1.SpaceWeather.com -- News and Information about Meteor Showers, Solar Flares, Auroras, and near-Earth Asteroids, www.spaceweather.com/meteors/lyrids/lyrids.html.

The Origins Of Poverty And Inequality Essay - 1652 Words

The origins of poverty and inequality can be traced back to the time of slavery and greed that this country encouraged. Some Americans, including African Americans, experience significant hardships, including temporary food shortages, inadequate housing, and unfair treatment, but these individuals are a minority within the overall poverty population. Poverty remains an issue of serious social concern, but accurate information about that problem is essential in creating a solution. This kind of poverty and inequality is rooted in the nation today by blatant segregation, discrimination, and immorality among individuals of higher power. President Obama broke the barrier and revolutionized America when he became president. In his speech, A More Perfect Union, he delivered and conveyed many messages about his beliefs concerning racism. He starts off explaining how the founders of our nation made the Constitution creating all men equal, but did not fully practice that idea. His former pastor, Reverend Wright, spoke some very controversial words concerning the issue of racism, which created much unease. Obama goes on to say that his former pastor is a good man, that he just has lived and grew up in a time where segregation and the Jim Crow Laws were legal in the United States. The anger and hostility of not being able to achieve something of oneself is felt not only in the African American community, but also in areas of the white community. Obama’s solution to ending this anger ofShow MoreRelatedPoverty in the U.S.961 Words   |  4 Pagesin the Economist, the US currently boasts the highest post-tax level of i ncome inequality of any high-income country in the world (Economist 2013). The nations Gini Coefficient – a measure of wealth inequality – currently stands at .42, well above that of other nations such as Switzerland and Sweden, which have Gini Coefficients of .31 and .33 respectively. Unfortunately this high level of income and wealth inequality is growing. Between 1979 and 2011, American earners in the top one percent sawRead MorePoverty And Poverty985 Words   |  4 Pagesexpansion are directly linked to poverty. And direct contact in the case of basic social and economic human rights, such as the right to a standard of living adequate for the health and well-being of the individual and his family, including food, clothing, housing and medical care. This link is indirect in the case of civil and political human rights associated with democratic governance and the rule of law (Pogge, 2017) .The poor, who suffer from extreme poverty and are deeply involved in the str uggleRead MoreThe Basic Political Writings Written By Jean Jacques Rousseau1185 Words   |  5 PagesWhat is the origin of inequality among men, and is it authorized by the natural law? 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Considering these divisive outcomes, does globalizationRead MoreRacial Inequality And The United States882 Words   |  4 PagesRacial Inequality â€Å"Change will not come if we wait for some other person or if we wait for some other time. We are the ones we’ve been waiting for. We are the change that we seek.† President Obama, then senator Obama, declared these words at a speech to supporters in 2008. If we are ‘the ones that we’ve been waiting for’, why aren’t things changing? Why is there still racism? Why is there still discrimination? These are crucial questions that I anticipate will remain unanswered forever. After BarackRead MoreEthnicity Creates Inequality in the Labor Market1267 Words   |  5 Pagescreates some inequality in labour market and health. The ethnicity is de1fined as a process of self-definition arising from inside a group. 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Jeopardizing the liberty of vulnerable populations, based upon material inequality and extraction of necessary resources, only does one thing within a society: continue the cycle of poverty and increase the poor’s dependence upon the rich for their liberty, equality and most importantly, survival. Within the ideal society for Jean-Jacques Rousseau, the laws put forth (authored byRead MoreThe United States Wealth Inequality Gap1369 Words   |  6 Pages The number of children who are living in poverty have decreased for the first time in almost ten years. The Census Bureau reported a 0.5 percent decrease of Americans living in poverty from 2012 to 2013. Poverty is among the country’s contemporary social problems in the Twenty-First Century. According to the Census Bureau, 45.3 million people were categorized as living in poverty in 2013. 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Final Lab Report Sample free essay sample

Total mass of the Element/Compound   (Part)Total mass of Compound (Whole) ? 100 The formula above is the formula used to determine the percentage composition of an individual element in a compound. In this experiment, the researchers are both going to solve for the theoretical percentage composition and the experimental percentage composition of elements/ ions. The theoretical percent composition is solved using a known formula compound and an experimental percent composition is solved using data identified in the experiment. The goal of this experiment is to formulate a diminutive percentage error as possible, which is solved using the formula below. Theoretical value-Experimental valueTheoretical value ? 100 The compound that they are going to use in this experiment is KCl or potassium chlorate. Potassium chlorate, when heated to high temperatures would form this equation: 2KClO? (s) ? 2KCl (s)+3O? (g) Procedure The experiment was composed of two parts. The first part was for determining the percentage composition of potassium chlorate. First, the researchers made sure that the crucible, which would be used throughout the experiment, was dry, so they heated it on a clay triangle for 2-3 minutes. Next, they let the crucible cool down a bit and then weighed it together with its cover. Then they added 1. 196 g of potassium chlorate into the crucible, placed its lid and then weighed it. After that, they heated the crucible again on the clay triangle for 8 minutes with its bottom 2. 5-3 inches away from the flame. They heated it for another 10 minutes, that time adding a little bit of distance between the flame and crucible bottom. They allowed the crucible to cool for about 10 minutes. Then they reweighed the sample for 6 more minutes, cooled it and then weighed it again. In the second part of the experiment, they took 3 test tubes, one containing a small amount of potassium chloride, one with a like amount of potassium chlorate, and one that contained a solution obtained from adding distilled water to the crucible, that was used in the first part of the experiment, and heated it for about a minute, and then they added 10 ml of distilled water to each and stirred. In each of the tubes, they added 5 drops of dilute (6 M) nitric acid and 5 drops of 0. 1 M silver nitrate solution, then stirred each test tube and observed carefully. Results and Discussion On the first part of the experiment, the researchers started off with the crucible with the sample that weighed 37. 184 g. , after the first heating, the mass decreased and became 37. 093 g. , after the second heating, the mass decreased again and became 36. 787 g. , the difference between the two wasn’t less than 0. 05 g. , so they had to reheat. After the third heating, the weight became 36. 779 g. , their difference was within 0. 05 g. so no more heating is required. After calculating, the researchers found out that the theoretical percentage of oxygen in KClO3 is 39. 17% and that the experimental percentage of oxygen they got in KClO3 was 33. 86%. On the other hand they also found out that theoretical percentage of KCl in KClO3 is 60. 83% and that their experimental percentage of KCl in KClO3 was 66. 14%. and that the experimental attempt to get the percentage of oxygen in KClO3 had an error of 8. 3%. On the second part of the experiment when 5 drops of dilute (6 M) nitric acid and 5 drops of (0. 1 M) silver nitrate solution were added to the solution of the residue and distilled water, potassium chloride solution, and potassium chlorate solution, all of them turned cloudy with white precipitate in them which indicated that chloride ions were present which lead to the deduction that the residue was actually KCl. 1. Mass of crucible + cover| 35. 988g. | 2. Mass of crucible + cover + sample before heating| 37. 84 g. | 3. Mass of crucible + cover + residue after 1st heating| 37. 093 g. | 4. Mass of crucible + cover + residue after 2nd heating| 36. 787 g. | 5. Mass of crucible + cover + residue after 3rd heating| 36. 779 g. | 6. Mass of original sample=37. 184? 35. 988=1. 196| 1. 196 g. | 7. Total mass lost during heating=37. 184? 36. 779=0. 405| 0. 405 g. | 8. Final mass of residue=1. 196? 0. 405=0. 791| 0. 791 g. | 9. Experimental percent oxygen in KClO3=0. 4051. 196? 100=0. 3386? 100=33. 86%| 33. 6%| 10. Experimental percent KCl in KClO3=0. 7911. 196? 100=0. 6614? 100=66. 14%| 66. 14%| 11. Theoretical percent oxygen in KClO3=3(16. 00)39. 10+35. 45+3(16. 00)? 100=48122. 55? 100=0. 3917? 100=39. 17%| 39. 17%| 12. Theoretical percent KCl in KClO3=39. 10+35. 4539. 10+35. 45+3(16. 00)? 100=74. 55122. 55? 100=0. 6083? 100=60. 83%| 60. 83%| 13. Percent error in experimental % oxygen determination=60. 83-66. 1460. 83? 100=-5. 3160. 83? 100=-0. 0873? 100=8. 73%| 8. 73%| Conclusion and Recommendation As seen above, the experimental percent gotten by the researchers wasn’t that far off from the theoretical value, and they ended up with a percent error of 8. 73%. That’s not a high percent error, but in chemistry, where accuracy is very vital, that amount is already considered high. One of the factors that led them to a high percentage error was that they used a different balance for the weighing of #4 and #5 in the table. For further experimentation, the researchers suggest that only one balance would be used throughout the experiment. It is also important to keep the crucible steady so that spattering won’t happen during heating. Because when spattering does happen, mass lost would no longer be accurate. References * Book: Hein, MORRIS, et al. , FOUNDATIONS OF CHEMISTRY IN THE LABORATORY FOR SCIENCES (CUSTOM EDITION), 12th ed. , Singapore129809, 2009 Appendix 1. Mass of original sample= (mass of the crucible + cover + sample before heating) – (mass of crucible + cover)| 2. Total mass lost during heating= (mass of the crucible + cover + sample before heating) – (mass of the crucible + cover + after 3rd heating)| 3. Final mass of residue= mass of original sample – total mass lost during heating| 4. Experimental percent oxygen in KClO3=total mass lost during heatingmass of original sample? 100| 5. Experimental percent KCl in KClO3=final mass of residuemass of original sample? 100| 6. Theoretical percent oxygen in KClO3=molar mass of O? molar mass of KClO 100| 7. Theoretical percent KCl in KClO3=molar mass of KClmolar mass of KClO 100| 8. Percent error in experimental % oxygen determination=theoretical value-experimental valuetheoretical value? 100|