Separation of a Carboxylic Acid from a Neutral Compound by Extraction Reference: Smith‚ Chapter 2 (Acids and Bases) Introduction Carboxylic acids and phenols are two families of organic compounds that contain carbon‚ hydrogen and oxygen‚ and also react with water to yield an excess of hydronium ions over hydroxide ions. Pure water has a pH of 7‚ which means it has a hydronium ion concentration‚ [H3O+] of 10-7 M (M = molarity‚ moles/Liter). The hydronium ions in pure water come from the self-ionization
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Separation of Church and State “…I contemplate with sovereign reverence that act of the whole American people which declared that their legislature should ‘make no law respecting an establishment of religion‚ or prohibiting the free exercise thereof‚’ thus building a wall of separation between Church [and] state.” These words‚ spoken by Thomas Jefferson in his letter to the Danbury Baptists in 1802‚ reassured the nation of his support of the First Amendment. The wall Thomas Jefferson illustrates
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REVIEW: Asghar Farhadi’s “A Separation” (Iran) When the great Akira Kurosawa created “Rashomon”‚ he challenged the nature of reality by having his characters recount their own versions of a single event. By doing so‚ Kurosawa managed to reveal not the truth but the underlying nature and motive of each character. Decades after this‚ Iranian filmmaker Asghar Farhadi creates “A Separation” – a film that echoes Kurosawa’s fascination for the truth while blinding the eyes of the characters with the intricate
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SEPARATION OF POWERS IN BOTSWANA Government The constitution implicitly recognises the separation of powers by dealing with each of the three organs of government in separate and distinct provisions. The executive is dealt with in chapter IV‚ sections 30-56‚ the legislature in chapter V‚ sections 57-94 and the judiciary in chapter VI‚ sections 95-106. Executive The whole of chapter IV of the constitution deals with the executive. Part I deals with the President and Vice President‚ part II with
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that will use for the separation depend on differences in physical properties such as decantation‚ filtration‚ extraction and sublimation. The process of separating a liquid from a solid (sediment) by gently pouring the liquid from the solid so as not to disturb the solid is Decantation. Filtration is the process of separating a solid from liquid by means of a porous substance –a filter- which allows the liquid to pass through but not the solid. Extraction is the separation of a substance from a
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Lab 2: Separation of Mixtures and Solids Purpose: The purpose of this lab is to become familiar with the separations of mixtures and solids. Pre-lab predictions: Data: Data Table 1: Experiment Data | | Grams | Percentage of Mixture | Iron Filings | 2.0g | 26.67% | Sand | 1.6g | 21.33% | Table Salt | 2.4g | 32.00% | Benzoic Acid | 1.2g | 16.00% | Total | 7.5g | 96% | Observations: While the water was boiling with the three solids (salt‚ benzoic acid‚ and sand) the water got
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September‚ and air conditioning is needed to keep temperatures comfortable indoors. Michigan residents have to deal with extreme heat in the summer and extreme cold in the winter. Many visitors from other states are unaware of how hot Michigan can get in the summer. Air Conditioners Are a Necessity in Michigan A fan will not suffice on hot sunny days. Fortunately‚ many homes in the Wolverine state are equipped with air conditioning. When an air conditioner malfunctions‚ the unit needs to be repaired
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Separation of a Mixture of Solids My Flow Chart First remove iron filings with magnet since this is the only substance in the mixture that it is magnetic and will be attracted to a magnet. Second remove the sand by adding the mixture to hot water‚ which the other two substances are soluble. Third remove the benzoic acid since this is less soluble in cold than salt by cooling the mixture in the heated water. This will then leave the table salt behind in the water as the last substance.
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CHE 107 24 June 2013 Separation of a Mixture of Solids Step 1: Separating out the Iron Mass of weighing dish: 0.7g Mass of weighing dish and mixture: 5.4g Net mass of the original mixture: 4.7g Mass of 10-cm square paper: 0.8g Mass of 10-cm square paper and iron fillings: 2.0g Net mass of iron filings: 1.2g Step 2: Separating out the Sand Mass of weighing dish: 0.7g Mass of weighing dish and dry sand: 1.7g Net mass of the dry sand: 1.0g Step 3: Separating out the Benzoic
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Experiment 55: A Separation and Purification Scheme The final lab report/procedure write-up will consist of the following: Report guide: 1. List the names‚ structures‚ and amounts of each compound in your mixture. 2. Draw a flow chart (like pg 687 in PLKE) showing how you separated and isolated your two compounds. Be sure to include the structures of the compounds at each step. 3. Write a procedure. This should include exactly how you performed your separation. It should have enough
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