Can elastic hose use for pumping and transferring concentrated solution of CH3COOH for long time? If not let explain why and propose at least two types of material which are properly used in this case
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Can elastic hose use for pumping and transferring concentrated solution of CH3COOH for long time? If not let explain why and propose at least two types of material which are properly used in this case.
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- COMPLETE THE STATEMENT: 1. Before manufacturing process begins the sources of suitable fragrances are ______ in the manufacturing centre. 2. Oils are ______ from plants and other substances by several methods 3. During ________, flowers are spread on glass sheets coated with grease. 4. _________is the oldest and least complex method of extraction. 5. During Aging, the_____ tests whether the perfume has the specific smell or not.X ray films consist of a flexible plastic base coated in a gel that contains light sensitive silver halide crystals (i.e. silver bromide and silver chloride). these films are exposed to X ray radiation to produce images of the inside of a subject. Once the films are no longer needed, it is common practice to recycle the film to recover the silver. This process is done by shutting the film and placing it in a large cyanide solution bath. The silver is precipitated out as silver cyanide. a. What can you conclude about the water solubility of silver cyanide? b. Using the knowledge of limiting reactants, how can the process of be optimized to ensure that the maximum amount of silver is recovered?A sample is known to consists of NaOH, or NaHCO3 or Na2CO3 or possible compatible mixture of these, together with inert matter. With methyl orange, a 1.100 g sample requires 31.4 ml of HCl (1.000ml is equivalent to 0.0140 g CaO). With phenolphthalein , the same weight of the sample requires 13.3 ml of the acid. Calculate the percent inert matter in the sample
- A sample is known to consists of NaOH, or NaHCO3 or Na2CO3 or possible compatible mixture of these, together with inert matter. With methyl orange, a 1.100 g sample requires 31.4 ml of HCl ( 1.000ml is equivalent to 0.0140 g CaO). With phenolphthalein , the same weight of the sample requires 13.3 ml of the acid. Calculate the percent inert matter in the sample? ( ans. 17.7%)What is precipitation from homogeneous solution; what are the benefits of this method.Describe liquid-liquid extraction. Provide at least one application for liquid-liquid extraction in industry
- The concentration of arsenic in an insectide is determined gravimetrically by precipitating MgNH4AsSO4 and isolating Mg2As2O7. Determine the %w/w Arsenic in a 1.500-g sample of insectide if it yields 0.1105g of Mg2As2O7. Solve using gravimetric calculation. Show the complete solution in a paper***28.10 An ammonium hydroxide solution is to be prepared at 77°F by dissolving gascous NH, in water. Prepare charts showing: (a) The amount of cooling needed (in Btu) to prepare a solution containing [ Ib mol of NH, at any concentration desired; (b) The amount of cooling needed (in Btu) to prepare 100 gal of a solution of any concentration up to 35% NHy; (c) If a 10.5% NH, solution is made up without cooling, at what temperature will the solution be after mixing?Which will have greater molar conductivity and why? Sol A. 1mol KCldissolved in 200cc of the solution or Sol B. 1 mol KCl dissolved in 500cc of the solution.
- A sample (50 mL) of a bottled water was added to a 100 mL volumetric flask and then diluted to the mark. From this stock solution, 50 mL was taken, added to a 100 mL volumetric flask and diluted to the mark. Final concentration of the serial dilution: 587.7161ppm. 1. what is the concentration in the original bottle (ppm)KMnO4 and Na2C2O4 solutions were used in the reactions that took place in a back titration to determine the amount of H2O2 in a sample. Calculate the concentration of H2O2 in the sample (w / v) as% by making appropriate assumptions for the volumes and normality of all these solutions.How to prepare the solutions listed below Solution 1) 25 mL 7 M sulfuric acid and the respective dilution of this solution to prepare 50 mL 2 M sulfuric acid in deionised water. Sulfuric acid Mw = 98.079 g mol-1 Sulfuric acid density = 1.84 g mL-1 Sulfuric acid purity = 98% Solution 2) 100 mL 0.02M potassium permanganate potassium permanganate Mw = 158.03 g mol-1 potassium permanganate purity = 99%
