Experiment # 8 Qualitative Analysis of Cations Objectives Part I: Separate a mixture of known cations: Pb2+‚ Fe3+‚ Al3+‚ Cu2+‚ and Ca2+ into individual ions. Perform a series of tests to become familiar with reactions characteristic of each cation. Part II: Separate and identify individual cations in an unknown solution containing a mixture of up to five cations. Use information gathered in part I to identify the cations. Introduction Qualitative analysis is a general name for the process
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City with Many Attributes Everything is defined by its characteristics. There’s no doubt Chicago is a peculiar city and possesses distinct qualities which makes it recognizable and distinguishable from other cities. It is a place with a great past‚ and perennially has stood with a noteworthy feature. The city not only exemplifies its distinct feature‚ but also symbolizes the personality of Chicagoans. The skyscraper‚ architecture‚ comedy‚ arts and music‚ and scandals are the attributes that make Chicago
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QUALITATIVE TESTS FOR SOME CATIONS II CHEMISTRY 11.1 OCTOBER 5 2013 QUALITATIVE TESTS FOR SOME CATIONS II I. Introduction Qualitative analysis schemes are often based on selective precipitation of different cations. By carefully selecting reagents and conditions for reactions‚ groups of ions can be separated on the basis of their reactivity and the solubility of their salts. This enables the experimenter to use simple techniques with standard laboratory equipment‚ as well as to learn
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Abstract Chemically active extraction was used to separate two unknown compounds from each other and to determine what compound class each compound belongs. The solid unknown was purified by recrystallization and its melting point range was determined to be 109-111°C. The liquid unknown was purified by simple distillation and its boiling point was determined to be 95°C. An IR spectrum was collected for each of the purified compounds; the solid was determined to be 3-toluic acid and the liquid was
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Andrew Carnegie once said‚ “No man will make a great leader who wants to do it all himself or get all the credit for doing it.” Teamwork is the key component to achieving something great‚ if a leader wants to be great‚ his team must also be great. Ruling and dictating as one individual never leads to positive results. Authoritative leadership is less effective than collaborative leadership because fear and power create anarchy and dissent‚ while respect and decency create a harmonious society. This
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Research Analysis 3-1 Mason-Williams‚ L. (2015). Unequal opportunities: A profile of the distribution of special education teachers. Exceptional Children‚ 81(2)‚ 247-262. Problem/Purpose This article is based on empirical evidence of the shortage of highly qualified special education teachers which is hindering the learning of children placed in special needs classrooms where there are high rates of school poverty. Mason-Williams (2015) asserted that Special education teachers are needed in the
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University of Phoenix Material Qualitative Research Methods Matrix Instructions: Refer to your syllabus for specific instructions Be detailed and thorough in your descriptions. Be sure to properly cite your sources (in-text and on the reference page) according to APA v. 6 standards. Primary Characteristics Current Peer-Reviewed Study Case Study A case study research is an empirical inquiry in which a researcher investigates participants‚ events‚ activities‚ and processes. According to Creswell
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Qualitative vs Quantitative analysis Qualitative analysis: Richness and Precision The aim of qualitative analysis is a complete‚ detailed description. No attempt is made to assign frequencies to the linguistic features which are identified in the data‚ and rare phenomena receives (or should receive) the same amount of attention as more frequent phenomena. Qualitative analysis allows for fine distinctions to be drawn because it is not necessary to shoehorn the data into a finite number of classifications
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In the lab‚ the purpose was to standardize a KMnO4 solution than using it to evaluate how close a H2O2’s concentration was to its labeled concentration. In this lab‚ it was decided to compare the concentration of new Publix brand hydrogen peroxide to an old sample of the same solution. From the data collected in the first part by titrating a solution of FeSO4*7H2O with the KMnO4 solution‚ it was determined that the concentration was .028M MnO4-. This was able to be done because a known amount of
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Project Selection – Qualitative Factors Introduction: The selection of a project or a portfolio of projects constitutes one of the main problems that managers are faced with. Decision of selecting an engineering‚ construction or R&D project is often fundamental for business survival. Such decisions usually involve prediction of future outcomes considering different alternatives. These predictions are not known with certainty‚ which results in a high level of uncertainty in managerial
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