techniques. Specifically‚ to form and filter a calcium carbonate precipitate using a Buchner funnel. Procedure: a.) Prepared a mixture of .5 M calcium nitrate (45 mL) and .01 M sodium carbonate by combining and stirring the two liquids in a beaker. Allow the mixture to stand. b.) Prepare the filtration assembly. The assembly consists of a tapered flask with a buchner funnel inserted in the top. The funnel has a rubber stopper attached to its stem in order to properly fit into the flask. The flask
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Experiment 7 Gooch filter crucible or fritted-glass funnel Mother liquor- liquid from which a substance precipitates or crystallizes Filtrate- liquid that passes through the filter Slurry- suspension of solid in liquid Calcium ion can be analyzed by precipitation with oxalate in basic solution to form CaC2O4.H2O The precipitate is soluble in acidic solution because the oxalate anion is a weak base CaC2O4.H2O (calcium oxalate monohydrate ; MW = 146 g/mol) Equation: Ca2+(aq) + C2O42-(aq)
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Since the Grignard reagent can easily react with water‚ all glassware including the 25 ml round bottom flask‚ magnetic stir bar‚ 3 and 5 ml conical vial‚ 50 mL Erlenmeyer flask‚ claisen adapter‚ drying tube and 5 glass pasteur pipets were first added to a 250mL beaker and placed in the oven for 30 minutes. After the completion of the thirty minutes‚ 0.150 g of shiny magnesium turnings and a stir bar was first added to the round bottom flask and the claisen adapter along with the drying tube packed
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temperature. After 10 minutes at room temperature‚ 5.0mL of 3M NaOH and 2.0mL of distilled water was added to the solution. Isolation and Characterization The solution was placed in a 125mL separatory funnel in which 5mL of dichloromethane and 5mL of NaCl solution were added to it. The separatory funnel was shaken three times and the solution was left to sit until two distinct layers formed. The top aqueous
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according to the changes in formation. Drilling fluid plays essential role in drilling process. For this experiment we used a 2000 mL sample of mud with 12 lb/gal density where 6 lb/bbl bentonite. This experiment was performed by using the Marsh Funnel method‚ pH meter and strips with weighing material barite to determine drilling mud characterizations. Introduction Drilling mud is a chemical mixture used while drilling a well for several purposes. The mud is circulated down the drill pipe
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To what extent can future utilization of Facebook increase Beeline’s (Telecommunication brand in Georgie) overall sales? 2.0. Introduction: Technological breakthroughs played important role on how businesses are conducted in 21st century. Introduction of web 2.0 along with widespread access to personal computers and smartphone devices enabled interactive two-way and multi-way communication between customers and businesses (Tuten and Solomon‚ 2014). Social media is defined as a the group of applications
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first procedure used in the experiment was 25.3g of whole cloves into a 500ml round flask. Then add 150ml of water into the 500ml round flask. Connect the apparatus‚ funnel with water‚ distillation head‚ condenser‚ and receiver using grease and clips to hold the equipment together. Connect the equipment to a stand by the separatory funnel so it can stand alone. Place the 500 round flask into the heating mantle. Place two pipes in the two openings of the equipment. The
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EXPERIMENT 13： Extraction: Extraction with acid and alkali Objective 1. To recover the benzoic acid and p-dichlorobenzene from its mixture from its mixture by using acid-alkali extraction. 2. To determine the percentage recovery and melting point of the recovered benzoic acid and p-dichlorobenzene. Introduction Acid-base extraction is a process which purifying the acids and bases from mixtures based on their chemical properties. Acid-base extraction is performed to isolate the compounds and natural
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ml per lab section) 45 ml CH2Cl2 (650 ml per lab section) Mg SO4 or Na2SO4 (anhydrous) Apparatus Items in kit 250-ml round-bottomed flask distillation head thermometer adapter large bore condenser Claisen adapter 125-ml separatory funnel Items not in
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Experiment Separation of Organic Compounds by Acid-Base Extraction Techniques 5 A commonly used method of separating a mixture of organic compounds is known as liquid-liquid extraction. Most reactions of organic compounds require extraction at some stage of product purification. In this experiment you will use extraction techniques to separate a mixture of an organic acid‚ a base‚ and a neutral compound. Organic acids and bases can be separated from each other and from neutral compounds
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