evident smell. 12. Water is a much more polar molecule than 2-propanol. How does the polarity of the liquid seem to influence the solubility of these solids? Water is more of a polar molecule then the given 2-propanol which allows ionic soild‚ sodium chloride that breaks off and becomes soluble. Camphor is not an ionic solid which means that it is not soluble in water although of the given molecular polarity. 9. What does a strong odour indicate about the ease with which the particles in a
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methanol (which is of intermediate polarity) and soluble with hexane (which is nonpolar). This is because generally‚ like dissolves like -- nonpolar will dissolve nonpolar but not polar‚ and vice versa. But note that this is an imperfect science -- you would expect hexane to dissolve faster and more completely than methanol (because of the differing polarities)‚ but the opposite occurred. This may be because of benzophenone’s ketone group‚ which adds a slight polarity to the molecule‚ making it a little
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Abstract Pigments extracted from different greens have different polarities and may be different colors. Mixed pigments can be separated using chromatography paper. Chromatography paper is able to separate mixed pigments due to their polarity and solubility. Pigments of chlorophyll a‚ chlorophyll b and beta carotene will be separated on chromatography paper because each has its own polarity and solubility‚ which results in different distance traveled up the paper. Beta carotene is non-polar so it
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Gabriel Alizaidy Liquid Chromatography September 14‚ 2009 Objective: To separate the components of unsweetened‚ grape flavored Kool-Aid. Procedure: Using two syringes‚ inject different concentrations of alcohol to extract red and blue dyes‚ and artificial flavoring. Data: Conclusion: Different dyes are shown when separated by different concentrations of isopropyl alcohol. Discussion of Theory: Chromatography‚ resolution and selectivity played major roles in making the experiment work
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Molecular Structure or "The Shape Molecules are In" Directions: Make a copy of this document and change the file name to “your last name‚ VSEPR Lab.” Place the document in the Google folder with your name on it. Follow each instruction to build molecular models and answer the following questions. Make sure your notes‚ comments‚ and answers are in a different text color. When you have finished with the lab questions attach a 12 page conclusion that summarizes and explains the main points of the lab
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organic compounds in various solvents. Exploration of the effect of polar groups on a nonpolar hydrocarbon skeleton. Introduction: The solubility of a solute (a dissolved substance) in a solvent (the dissolving medium) is the most important chemical principle underlying three major techniques you will study in the organic chemistry laboratory: crystallization‚ extraction‚ and chromatography. In this experiment on solubility you will gain an understanding of the structural features of a substance
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Chromatographic Analysis of a Commercial Analgesic’s Active Component I. Abstract This study on Chromatographic Analysis of a Commercial Analgesic’s Active Component seeks to separate‚ identify‚ quantify and analyze the active component found in Biogesic®‚ which may be useful for public awareness despite its wide acceptance and availability in the market. Furthermore‚ this study applies thin layer chromatography (TLC) technique since it is the simplest‚ cheapest yet most effective approach in terms
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Differentiate between reflexes and local homeostatic responses. 12. List and describe four types of intercellular chemical messengers. 13. How do phase-shifts of the circadian rhythm occur? 14. Explain how an imbalance in any given physiological variable may produce a change in one or more other variables. 15. What are the three possible states of total-body balance of any chemical? 16. Name the concept that is the defining feature of physiology. 17. How does a biological rhythm differ from
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Lampman‚ Randall G. Engel‚ 2013‚ Cegage Learning pages 26-30 and 687-693). Part D involved identifying an unknown. Part E involved using polarity and solubility theories to determine the best solvent for crystallization‚ which compound was too soluble and which compound was not soluble enough. The Merck Index was used to get exact solubility’s and polarities to determine which solvent would be best to crystallize the given solute. Data/Observations: In part B the book stated that dissolving
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Polarities and Polarity Management Polarities and Polarity Management GM500-01/Managers & Leaders Professor Sparks 11/11/2011 GM500-01/Managers & Leaders Professor Sparks 11/11/2011 Kristina Smith‚ GM500-01 Planning and Taking Action. Kristina Smith‚ GM500-01 Planning and Taking Action. Polarities and Polarity Management What are Polarities? Polarities are interdependent opposites which function at its highest when both are present and balance each
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