Ngoc Pham Chem162B Lab #2: Trends in Periodic Table Date: 01/10/2011 Lab partner: Ian Bauer Result Section: Table I: The solubility of the alkaline earth metal ions | SO42- | CO32- | C2O42- | IO32- | Mg2+ | S | I | S | S | Ca2+ | I | S | S | I | Sr2+ | S | S | S | I | Ba2+ | I | I | I | S | Key: I- insoluble‚ S-soluble Table II: Color of water (Halide) and Halogen (Hexane) layers | Cl2 | Br2 | I2 | Hexane layer | Clear | orange | Pink | Water layer | Clear‚
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1 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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CHEM 3281 Experiment Seven Determination Of The Composition Of A Multi-Component Mixture By Spectrophotometric Analysis Objectives: 1.Solid sample handling 2.The composition of a three-component mixture will be assayed by dissolution of the soluble components in water and measurement of their individual concentrations by visible spectrophotometry. Text Reference: Handbook of Instrumental Techniques for Analytical Chemistry‚ Frank Settle‚ editor. Prentice Hall‚ ‚ Upper Saddle River‚ NJ 1997‚ Ch 25
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Andy Chen and Alexander Van Buren 9/15/11 AP Chemistry Dr. Isotone Lab 1: Determination of the Empirical Formula of Silver Oxide Lab Objective: In this experiment‚ the percent composition and empirical formula of silver oxide will be determined. Silver oxide will be heated until it decomposes to silver metal and oxygen‚ and the percent calculation and empirical formula can be calculated based on combining the ratios of silver and oxygen in the reaction. Summary of
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This paper is a full determination for certain chemicals and their boiling points. It lists some already but given the atomic numbers of any material this project includes a conversion and calculation chart to find the freezing point of most any material. GOOD LUCK! Abstract: In this lab we determined the freezing point‚ and Kf‚ of pure 2‚4‚dichloralbenzne as well as a 2‚4‚dichloralbenzne/biphenyl solution. We used this information to determine the molar mass of an unknown (#24) by the 3rd step
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Theo Victor Cavite Chem 28.1 Melanie Bucsit-Carpio September 14‚ 2012 Spectrophotometric Determination of Iron in Aqueous Solutions as a Complex of 1‚10-Phenanthroline Introduction From the previous classical method of concentration determination of an unknown sample‚ this experiment now deals with the instrumental one. Unknown concentrations of iron in solutions were determined by measuring their corresponding absorbances through spectrophotometry. A spectrophotometer measures the amount
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and nice fair tone color you considered as White. No one really knows how biology fits into all of this‚ but apparently for some individuals race is base on biology. In the article‚ “The Slave Trader‚ the White Slave‚ and the Politics of Racial Determination in the 1850s” by Walter Johnson who elastrate how race was determined in the 1850’s and how the case of Morrison and White puts a huge confusion between the two races. This case as allow the court to view race in a different manner. This women
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Integrated Case 6-21 Morton Handley & Company Interest Rate Determination Maria Juarez is a professional tennis player‚ and your firm manages her money. She has asked you to give her information about what determines the level of various interest rates. Your boss has prepared some questions for you to consider. A. What are the four most fundamental factors that affect the cost of money‚ or the general level of interest rates‚ in the economy? Answer: [Show S6-1 and S6-2 here.] The four most
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EXPERIMENT NO. 6 DETERMINATION OF THE MOLAR VOLUME OF A GAS AND THE UNIVERSAL GAS CONSTANT Salve‚ Ryan Angelo TAB3‚ Group 6‚ Mr. John Kevin Paulo Biadomang Tabor‚ Frances Hermilyn March 8‚ 2013 ------------------------------------------------- I. Abstract This experiment is working with the ideal gas law‚ which is the summation of Boyle’s Law‚ where pressure is inversely proportional to volume‚ Charles’ Law‚ where the volume is directly proportional to temperature and Avogadro’s Law‚ where
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In this study‚ three different methodologies have been employed for the determination of 226Ra by means of liquid scintillation technique. The first one (referred to as "Rn-LSC-28" hereafter and the tables and figures) is based on the method of Prichard and Gessel (1977) and Cooper et al. (1988) and also used by Escobar et al. (1996)‚ Zouridakis et al. (2002) and Aleissa et al. (2012). In this procedure‚ 8 mL of each standard solution was transferred to a high density polyethylene vial‚ covered with
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