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2020-3-21we prepared fe 3 o 4 nanoparticle by chemical precipitation unfortunately its toxicity was moderate so i think to replace it by one prepared green synthesis if one try to prepare one by a green
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2020-3-21we prepared fe 3 o 4 nanoparticle by chemical precipitation unfortunately its toxicity was moderate so i think to replace it by one prepared green synthesis if one try to prepare one by a green...
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The solution contained 8688 g of hcl what is the molarity of the solution an experiment in a general chemistry laboratory calls for a 200-m solution of hcl how many ml of 119 m hcl would be required to make 250 ml of 200 m hcl what volume of a 020-...
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A solution is prepared by dissolving 108g ammonium sulphate in enough water to make 100ml of stock solution a 10ml sample of this stock solution is added to 50ml of water calculate concentration of ammonium ions and sulphate ions in the final solution...
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Aluminum sulfate anhydrous is an aluminum salt with immune adjuvant activity this agent adsorbs and precipitates protein antigens in solution the resulting precipitate improves vaccine immunogenicity by facilitating the slow release of antigen from the v...
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2016-6-8problem 3 a solution is labeled 289 ppm and is made with a solute that has molar mass equal to 522 gmol what is the molarity of the solution solution straight from yahoo answers 1 unless specified otherwise ppm usually refers to ppm by weight...
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Abstract the present study investigates effect of anions such as chloride cl- nitrate no 3 2- and sulfate so 4 2- with their counter cations like sodium na potassiumk and ammonium nh 4 on sulfur oxidizing microorganismsbioprocess parameters such a...
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2018-5-15the present field experiment was carried out during rabi season of 2008-09 at research farm of ammomolybdate 10g ferrous sulphatekg seed treatment with rh psb t 9 4 rdf 20g ammonium molybdate 10g feso 4 kg seed treatment rhizobium p...
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2017-8-7evaluation of in vitro - amylase inhibitory kinetics and free radical scavenging activities of momordica charantia renuka r1 and jeyanthi g p 2 1department of biochemistry sri ramakrishna college of arts and science for women coimbatore- 641044...
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How to calculate hydrates if youve already conducted this experiment and know the mass of both the hydrated and anhydrous salts the calculations are simple subtract the mass of the anhydrous salt from that of the hydrated salt for example if you h...
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In an experiment a piece of magnesium ribbon was cleaned with steel wool 24g of the clean ribbon was placed in a crucible and completely in an experiment a piece of magnesium ribbon was cleaned with steel wool 24g of the clean ribbon was placed in a...
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2016-3-7solution n containing 490g of ammonium ferrous sulphate nh42so4 feso46h2o per litre of solution you are required to determine the reacting mole ratio of manganate vii ions mno4 with the number of moles of solution n that reacted with solu...
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2007-8-29you can also use the cheaper ferrous sulphate feso47h20 in which case 30 g are required and the water should be acidified with a little dilute sulphuric acid before dissolving the compound dissolve 130 g oxalic acid in about 100ml water and...
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Sodium sulphate potassium nitrate ferric phosphate calcium oxide aluminium hydroxide 4 write answers to the following questions and explain your answers a explain how the element sodium is monovalent b m is a bivalent metal write down the steps to...
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2016-8-20solution n containing 490g of ammonium ferrous sulphate nh 4 2so 4 feso 46h 2o per litre of solution you are required to determine the reacting mole ratio of manganate vii ions mno 4 the experiment using the volumes indicated in th...
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Disinfection of sulphate reducing bacteria using ultraviolet treatment to mitigate microbial induced corrosion ferrous ammonium sulfate fenh 4 2 so 4 2 sulphate-reducing bacteria...
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2016-1-23urea mono ammonium phosphate and potassium sulphate respectively these substances were used separately ferrous sulphate was applied at a rate of 100 ppm as foliar spray after 20 30 days the experiment was laid out in a completely randomi...
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In ice since it is a solid the particles inside have very restricted movement therefore the ammonium permanganate in a frozen aqueous solution will not be decomposing ice slowly sublimes therefore if a solution of ammonium permanganate is frozen a...
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2017-5-8sodium chloride solution 50mgml of sodium chlo- sodium chloride must be subjected to further processing ride in water during the preparation of injectable dosage forms the barium chloride solution 250mgml of barium chlo- level of bacterial endoto...
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Sodium sulfate anhydrous is the anhydrous sodium salt form of sulfuric acidsodium sulfate anhydrous disassociates in water to provide sodium ions and sulfate ions sodium ion is the principal cation of the extracellular fluid and plays a large part in t...
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To observe local action during this experiment allow a drop of titrant ie ferrous ammonium sulphate to drop on the solution without agitating the flask as is normally done during titrationthe solution in the immediate vicinity of the drop turns gree...
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2002-7-11 standard ferrous ammonium sulphate fas 025n 98g of fas was dissolved in minimum distilled water to which 20ml of conc sulphuric acid was added and made upto 1000ml using distilled water to give 025n of ferrous ammonium sulphate...
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The conversion of lead sulphate to lead carbonate in sodium carbonate media hydrometallurgy 28 399-421 the reaction of sized pbso4 powders with na2coa media has been investigated over a broad range of experimental conditions the reaction obeys the shr...
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Graft copolymerization of acrylamide on cellulose using hydroquinone enhanced fe2h 2o2 initiating system materials and methods ferrous ammonium sulphate 30 h2o2 and hydroquinone were reagent grade bdh england chemicals acrylamide was obtained from b...
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2016-1-29tutorial 4 solution stoichiometry solution stoichiometry calculations involve chemical reactions taking place in solution of the various methods of expressing solution concentration the most convenient for general laboratory use is molarity whi...
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