The History Of Beta The year of 1934 was the year that saw many exciting events and changes throughout the world… The Dionne sisters (the first quintuplets to survive birth) were born in Canada‚ The St. Louis Cardinals defeated the Detroit Lions for the World Series‚ Vitamin K was discovered by Henrik Dam‚ and a first class stamp cost $0.03‚ but the most exciting event by far happened when the National Beta Club began as the dream of Dr. John W. Harris‚ a professor at Wofford College in Spartanburg
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BETA MANAGEMENT COMPANY Q1. Calculate the variability (standard deviation) of the stock returns of California REIT and Brown Group during the past 2 years. How variable are they compared with Vanguard Index 500 Trust? Which stock appears to be riskiest? The stock returns for each month are given in Table 1. Based on the monthly returns‚ the standard deviation or variability of each stock has been calculated. The standard deviation for California REIT is 9.23% and the standard deviation for Brown
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Chromatography is a process used to separate mixtures. The word chromatography is derived from the Greek words ‘khroma’ and ‘graphein’ meaning ‘color’ and ‘to write’ or to represent. Although there are a couple different types of chromatography‚ in each case a substance is placed onto or into a medium and a solvent is passed through the test substance. In chromatography science‚ the solvent is called the mobile phase or the carrier fluid and the medium is called the stationary phase. There are four
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Gas Chromatography Purpose: The purpose of the gas chromatography lab is to find out how different substances interact with the surface of a solid. Chromatography is a separation technique that depends on the relative distribution of the components of a mixture between a mobile phase and a solid stationary phase. Chromatography measures the tendency of a substance to interact with the surface of a solid or to remain in a mobile phase. When doing a chromatography lab the mobile phase has to
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Column and Thin Layer Chromatography Beverly Abstract: Plant pigments were separated and concentrated from a crude spinach extract through the use of column chromatography and an eluatropic series of hexanes‚ hexane/acetone‚ and methanol. The pigments were analyzed using thin layer chromatography with a 30% ethyl acetate/hexane developing solvent. Introduction: Chromatography is a technique used to separate a mixture of two or more components based on
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GAS CHROMATOGRAPHY EXPERIMENT The purpose of this experiment is for the student: 1) to learn the general theoretical aspects of gas chromatography as a separation method‚ 2) to learn how to operate gas chromatographs specific to COD‚ 3) to become familiar with using the gas chromatograph (GC) to qualitatively identify components of mixtures‚ 4) to be introduced to and to interpret the quantitative data available via gas chromatography‚ 5) to gain insight into how the GC technique is used
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Explain how the chemical compounds carotene‚ retinol‚ and rhodopsin are each involved in vision. Vitamin A is responsible for good vision and eye health. It allows the surface of the eye to protect itself from bacteria and viruses. The rate in which your peripheral vision is lost will decrease if you take Vitamin A every day. If you have a deficiency from Vitamin A‚ your cornea to turn dry and cloud up the eye‚ which could even lead to blindness. Vitamin A can come in the form of retinol (active
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found that the concentration of chlorophyll a was 1.590 mol/L‚ chlorophyll b was 0.9568 mol/L‚ and this resulted in a total concentration of chlorophyll to be 2.547 mol/L. The concentration of carotenoids was found to be 0.3858 mol/L. When looking at the peaks shown in the absorption spectra it is possible to identify which peak correlates with which compound. Figure 2 contains a peak at around 500 and 700 nm which is a good indicator that that would-be chlorophyll b. This makes sense because this
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Separation of Mixtures Mixtures exist in many forms in the world‚ and if it were not for methods of separation‚ many of these substances would be meaningless to us. Separating mixtures is extremely important to human lives; for example‚ many people filter water so that it is safe for drinking. Mixtures contain two or more substances that are not in a fixed ratio‚ and while some mixtures‚ such as concrete‚ are useful‚ others including salt water‚ are not as useful to us. Filtration‚ distillation
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CHAPTER 6 MECHANICAL-PHYSICAL SEPARATION PROCESSES Introduction Separation Processes Many chemical processes materials and biological substances occur as mixtures of different components in the gas‚ liquid‚ or solid phase. In order to separate or remove one or more of the component from its original mixture‚ it must be contacted with another phase. The two-phase pair can be gas-liquid‚ gas-solid‚ liquid‚ or liquid-solid. Absorption When the two contacting phases are a gas and a liquid
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