Determination of an Unknown Concentration of Potassium Manganate using Colorimetry Introduction The purpose of this experiment is to conclude the concentration of an unknown solution using colorimetry to plot a calibration curve. Colorimetry measures the absorption of light at wavelengths within the visible region of the electromagnetic spectrum. It can be used to identify the unknown concentration of a solution in reference to a solution of a known concentration. When a solution appears coloured
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Essay question: ------------------------------------------------- What are the benefits and limitations of using Second Life in Education? Use of the internet has increased exponentially in recent years‚ in both developed and developing countries‚ and educators are searching for ways of utilising the new technology and environment to enhance teaching and learning experiences. Second Life (SL) is a world which exists online. The world is complete with schools‚ universities‚ businesses and even
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Practical report: Determination of concentration using a standard curve Introduction Spectrophotometer is an instrument that confirms the measurement of specified wavelength of light that passes through medium. The measurement of light absorbance by a solution is also done with spectrophometer. Absorption spectrum Spectrometers are mainly and widely functional in identifying the components of solutions that helps determine the components’ concentrations. Compounds are experimentally identified
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Winny Stephanie Experiment 1: Quantitative Determination of Protein Concentration Using the Biuret Test Table 1: Experimental protocol for construction of the protein standard curve Tube 1 2 3 4 5 6 Buffer (ml) 1.0 0.8 0.6 0.4 0.2 0.0 BSA Protein solution (10 mg ml-1) (ml) 0.0 0.2 0.4 0.6 0.8 1.0 Biuret reagent (ml) 4.0 4.0 4.0 4.0 4.0 4.0 Total Volume (ml) 5.0 5.0 5.0 5.0 5.0 5.0 Final protein concentration (mg ml-1) 0 2 4 6 8 10 Absorbance 0.000 0.092 0.163 0.272 0.363 0.474 Table
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immune cells: Leukocytes are normally found in the blood‚ while non-leukocytes are found in tissue. Fill in the cells classified under the following headings and note if they are found in blood or tissue. • Phagocytes: __________________________ • Antigen-presenting cells: __________________________ • Effector cells of adaptive immunity: __________________________ • Other: __________________________ 6. Primary lymphoid organs‚ where B and T cells originate and mature‚ are the bone marrow and thymus
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Web-Based Student Accounts and Record management system for Lupon Vocational High School Data duplication: the same data gets repeated over and over since the workers find it hard to keep track of the documents‚ information and transactions. Lack of security: since data is stored in filing cabinets it is freely available to anyone. If information falls into the wrong hands it can be used against the school and students and can blackmail them. Common errors: when entering data student and they might
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McDonald’s Internet Site Terms and ConditionsPLEASE READ THE FOLLOWING TERMS AND CONDITIONS CAREFULLYBy using the pages in this site‚ you agree to these terms and conditions. If you do not agree‚ you should not use this site.RESTRICTIONS ON USEMaterial from www.mcdonalds.com and any other World Wide Web site owned‚ operated‚ licensed‚ or controlled by McDonald’s Corporation or any of its related‚ affiliated‚ or subsidiary companies (together‚ "McDonald’s") may not be copied or distributed‚ or republished
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LIMITATIONS OF THE STUDY 1)The possibility of respondent’s responses being biased cannot be ruled out.2)Limited access to secondary data pertaining to Havells performance in other regions or any other information was another problem in finding a correctresponse.3)Since a smaller sample was chosen so it may not be true representative of population under study.4)Most of the times people don’t give appropriate information.5)Mostly retailers don’t want to give accurate information and act rudely.6)The
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‘‘ECONOMICS is a science which studies human behaviour as a relationship between ends and scarce means that have alternative uses.’’- By Lionel Robbins‚ an economist in an attempt to define Economics. Lionel considered the study of economics to be a social science that concerns itself with the investigation of how man maximizes his satisfaction from the limited resources at his disposal and not forgetting the fact that these available limited resources can be channelled into the production of other
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Scope and Limitations Out of all the fourth year high school students of Taguig National High School (TNHS) and Upper Bicutan National High School (UBNHS)‚ only the students from the pilot section will be used as samples in conducting the survey. This study limits its coverage on the fourth year high school students only. Its purpose is to compare the English Proficiency Rates between two schools using the data from the questionnaires that will be given to the said students. This study considers
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