analytical laboratory experiment is to determine the unknown concentration of potassium permanganate (KMnO4) solution by finding its absorbance through the use of spectrophotometer. The preparation of four known concentration of KMnO4 was done namely‚ 2.00×10-4M‚ 1.50×10-4M‚ 1.00×10-4M‚ 5.00×10-5M‚ respectively and is to be place on the spectrophotometer with the unknown and distilled water for the determination of each concentration’s absorbance. As the concentration is proportional with the absorbance of
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movement of molecules comes from the kinetic energy of molecules. Structure of Cell Membrane Picture taken from http://www.ncnr.nist.gov/programs/reflect/rp/biology/cell_membrane.html Spectrophotometer There are two kinds of spectrophotometer which are the single beam and the double beam spectrophotometer. The single beam measures relative light intensity of a previous sample whereas the double beam compares light intensity between two light paths.
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BSA 700: The Auditor’s Report on Financial Statements Prepared By Abdullah-Al- Mamun The auditor should review and assess the conclusions drawn from the audit evidence as obtained as the basis for the expression of an opinion on the financial statements. Basic Elements of the Auditor’s Report The auditor’s report includes the following basic elements ordinarily in the following layout: a) Title b) Addressee c) Opening or Introductory Paragraph- i) Identification
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Aim The objective of this experiment is to determine the unknown concentrations of solutions. Introduction With the use of absorption of light a spectrophotometer sends UV wavelengths through solutions to determine their concentrations. The light absorbed is measured as the atoms‚ molecules and ions absorb the wavelengths of light that the spectrophotometer gives off (Meah‚2013). The level of light transmitted defines the amount of light absorbed‚ for instance‚ the lower the light absorbance the higher
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a story of James Dale. - Dale was part of Boy Scouts of America‚ abbreviated BSA‚ for 12 years as a assistant scoutmaster. - However‚ in 1990‚ when BSA found out that Dale was gay‚ he was expelled from the organization. - Dale felt that this was unfair‚ and he appealed to the Supreme Court. - At first the Supreme Court ruled that BSA was wrong and it was illegal for them to discriminate against Dale; however‚ BSA appealed this ruling‚ and the Supreme Court later favored BSA’s action. - Later
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activity. Also calcium and magnesium are hypothesized as the cofactors necessary in the functioning of enzymes in bacteria and fungi that spoil food‚ due to EDTA binding to them. (Clapper‚ A‚ 2007) Material and Method Spectrophotometer cuvettes‚ A spectrophotometer‚ 18 mL of catechol solution‚ 10 mL of enzyme solution‚ 531 mL of distilled‚ 2 mL of EDTA and 2 mL of phenyl thiourea (PTU) were used as possible chelating agents‚ 5 labeled pipettes‚ around 14 pieces of parafilm‚ kimwipes‚ cuvette
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Bromophenol blue. The ligand with the highest affinity to BSA was a little more difficult to decipher. The experiment shows that all of the 2 µL of both Ponceau S. and Bromophenol blue bind to the BSA. However‚ when 5 µL of the ligand is added the BSA is saturated and cannot bind anymore of the ligand. The data illustrates that Ponceau S. has a higher concentration of extra ligand at 5 µL; therefore more Bromophenol blue binds to the BSA. With this said one can conclude that Bromophenol blue has
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academic performances as BSA students. This is a work especially for the benefit of the academe. B. STATEMENT OF THE PROBLEM This research paper focuses on the effects of study habits influencing the academic performance of the students. It is also aimed to answer the following questions: 1. How may the respondents be described in terms of: 1.1 age; 1.2 gender; and 1.3 year level? 2. What study habits do BSA students find effective? 3. How do BSA students develop their
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tissues ; Pipets‚ serological‚ 10-mL ; Sample of consumer sports drink‚ 10-mL ; Spectrophotometer ; Test tube rack Procedure: 1) Preeminently‚ follow all laboratory safety guidelines ensuring that you have safety goggles on at all times throughout the lab. 2) Fill the cuvette 2/3 of the way with water. 3) Select the appropriate wavelength on the spectrophotometer. 4) Place the cuvette in the spectrophotometer and click the calibrate button. 5) Put 5mL of stock solution into test tube. 6)
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Alpha Phi Alpha Fraternity‚ Inc. Boy Scouts Committee Alpha Brothers needed to support the next convocation of Eagle Scouts! The Partnership The Boy Scouts of America (BSA) founded in 1910 and chartered by Congress in 1916‚ is one of the largest youth organizations in the United States with more than 2 million youth and 900 thousand adult volunteers. BSA’s goal is to “train youth in responsible citizenship‚ character development‚ and self-reliance through participation in a wide range of outdoor
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