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Bleach analysis lab report
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Start by measuring 5.00 mL of commercial bleach in a 100 mL volumetric flask. The bleach was then diluted with distilled water until the contents reached the neck of the flask. Two grams of Potassium Iodide was then weighed out. Then, 25 mL of the diluted bleach solution was transferred into an E. flask by pipet. After that, the Potassium Iodide and 25 mL of deionized water was added to the E. Flash. The content of the flask were then swirled in order to properly dissolve the solid Potassium Iodide. The experiment was then moved to the fume hood, where 2 mL of 3 molar hydrochloric add were added to the E. Flask. The flask was then swirled for 2 minutes in the fume hood to ensure that no chlorine gas was produced by accident. The buret was filled
The purpose for this experiment was to determine why it was not possible to obtain a high percent yield when Calcium Nitrate Ca(〖NO_3)〗_2 with a concentration of 0.101 M was mixed with Potassium Iodate KIO_3 with concentration of 0.100 M at varying volumes yielding Calcium Iodate precipitate and Potassium Nitrate. Filtration was used to filter the precipitates of the solutions. The percent yield for solution 1 was 87.7%, and the percent yield for solution 2 was 70.8%. It was not possible to obtain a high percent yield because Calcium Iodate is not completely soluble and some of the precipitates might have been rinsed back to the filtrates when ethanol was used to remove water molecules in the precipitate.
Samples were taken from the three main bottles that contained the three solutions that were needed in the experiment. 10 ml of solution A was placed on a 50 ml Erlenmeyer flask. This solution had transparent water like consistency and appearance. 3 ml of solution B was put on a 10 ml Erlenmeyer flask. This solution had a blue tint on it. 3 ml of solution C was also placed on another 10 ml Erlenmeyer flask. Like solution A, this last solution had the same transparent water like consistency and appearance. Cork Stoppers were placed on the rim of all the flasks. After making sure that the exteriors were dry, the whole system was weighed all at the same time and the measurement data recorded. Solution B was then poured onto the 50 ml flask, as the blue liquid trickled down slowly, there was toothpaste like precipitate that appeared on the bottom of the flask. It was not until the swirling began did the two solutions mix for before swirling the flask, the two solutions did not readily mix together. While carefully swirling the flask, the toothpaste like precipitate began to mix with the clear liquid.
The rate of any reaction is exponentially related to the concentration of reactants. This lab investigated the reaction of potassium iodate and sodium bisulfite. The experiment was done in order to determine the order of the reaction. Ten trials were done in which ten wells were filled with ten drops of sodium bisulfite with a constant concentration while various concentrations of ten drops of potassium iodate were added to each well of sodium bisulfite. The dilutions of potassium iodate were done in ten wells as well. The first well was filled with a maximum of ten drops of potassium iodate and decreased by one drop for each consecutive well until only one drop was in the last well. For the distilled water, the first well which was filled
...ion, Proceedings of the 5th Annual International Conference on Remediation of Chlorinated and Recalcitrant Compounds, (2006) Monterey, CA, May 22-25.
Non-chemical Water Treatment Systems: Histories, Principles and Literature Review, Loraine A Hucler, P.E., MarTech Systems, Inc., Lawrenceville, NJ, October 2002.
- The amount of times the mixture was stirred. We stirred the mixture until the Ammonium Nitrate was dissolved, so the amount of times we stirred after each teaspoon was different.
Bleach is an amazing thing. It gets tough spots off your white clothes in a jiffy and makes it look brand new. A lot of people use this product, but no one has the time to actually figure out how it works. The element that is inside bleach includes Chlorine. “A Swedish pharmacist named Carl Wilhem Scheele released a few drops of hydrochloric acid onto a piece of manganese dioxide. Within seconds a greenish - yellow gas arose. The greenish-yellow gas was actually an element which was only recognized several decades later by English Chemist Sir Humphery Davy” (american chem). Suprisingly the word chlorine comes from the Greek Word Khloros which means greenish-yelllow.
usage of chlorine in water treatment was first applied back in 1990’s. Chlorine has been mostly used in water treatment than any other application because it is very active and it destroys a wide range of harmful bacteria and viruses in the water. Disinfection of drinking water is one of the most important and successful accomplishment for public health because it has done a major reduction of diseases that are caused by drinking unsafe water, such as typhoid, cholera and other waterborne diseases. Even after thirty years of its existence chlorine is still one of the biggest application used when cleaning water for health benefits around the world. The formation
Discuss in detail about the mechanism of each treatment unit in treating the waste water. (Note: which impurities are treated and how they are treated)
Careful note: Pour all of the liquids used in this experiment in a fume hood.
Treatment ponds are further in depth for water that needs other chemicals or bacteria to be removed. In these, wate...
The forth step in water treatment is a disinfection. During this stage, disinfectants will be added to kill or inactivate microorganisms that can cause disease in humans. The research on the water sample shows presence of protozoa that cause diseases such as Entamoeba histolytica, Giardia lamblia and Naegleria fowleri (Nemerow, Agardy, Sullivan, & Salvato, 2009). Some protozoa and viruses, which may present in water supplies are extremely harmful. There are two kinds of disinfection which is primary disinfection and secondary disinfection. Primary disinfection functioning in killing or inactivation of microorganism in the desired level while secondary disinfection maintains a disinfectant effectiveness that prevent from the microorganisms grow again. Disinfection treatment methods include chlorination, ozone and ultraviolet light. Chlorination is the most common method of disinfection used to treat water for municipal and individual supplies. It is because chlorination method is easy to conduct and cheapest compare to other method. In municipal supply systems, chlorine is used basically in three forms which are chlorine gas, sodium hypochlorite solution and solid calcium hypochlorite (Cheremisinoff, 1995). Chlorine is very effective for removing almost all microbial pathogens and is appropriate as both a primary and secondary disinfectant. Unfortunately, this method will produce water in which the chlorine can be smelt and tasted by users which most of them find it unpleasant. Binnie and Kimber (2009) stated that the problem can be overcome by dechlorination process after sufficient time for disinfection process. The water will be added with sulfur dioxide or sodium sulfate which reduces the chlorine to chloride (Binnie & Kimber, ...
Water for Injections (WFI) should be prepared from potable water as a minimum quality feed water. WFI is used as excipients in manufacturing of potentials and for equipment cleaning especially product contact surfaces of sterile products. It is prepared using purified water as feed water. The method used for the preparation of WFI is multicolumn distillation. The water must meet ionic, organic chemical, microbial and endotoxins requirements. The systems that produce, store and circulate WFI should be controlled by circulation, frequent sanitisation and monitoring to avoid factors like microbial contamination and endotoxins.
In the end, water sanitization owners acquainted society by initiating carbon filters. Such filters have an extensive surface territory, a surface that can pull in and hold certain chemicals. The presently flow information on this methodology of decontamination permits mortgage holders and entrepreneurs to appreciate clean, unadulterated, extraordinary tasting
The aniline hydrochloride was given in the solid form. So, the mass of aniline hydrochloride to prepare 0.1 M of aniline hydrochloride need to be calculated. The only information given was the molar mass of the aniline hydrochloride. The mole of the of the aniline hydrochloride was calculated by using formula,no.of mole=(molarity x volume)/1000. The mole of aniline hydrochloride calculated is 0.01 mol. Then, by using o.of mole=mass/(molar mass) , the mass obtained is 1.296 g. 1.296 g of aniline hydrochloride was put into the 100 ml volumetric flask and distilled water was filled to the calibration mark. To determine the volume of aniline hydrochloride needed to be dissolved to prepare the solution as instructed, the formula of M1V1 = M2V2 . M1 and V1 are the molarity and volume of the concentrated stock solution while M2 and V2 are the molarity and volume of the diluted solution which need to be prepared. For each of the concentration which need to be prepared, the calculated volume of aniline hydrochloride was put into the volumetric flask and distilled water was filled to the calibration