Gravimetric determination of sulphate in fertiliser Question: The proportion of sulphate present in a brand of commercial fertiliser under a range of temperatures. Fertilisers provide plants with a number of sources necessary for them to grow‚ as follows‚ nitrogen‚ phosphorus‚ potassium and finally the one I will be concentrating on Sulfur. To cater for the varying plants‚ you wouldn’t require all these elements to the same extent as the necessities for each plant differ. The composition of different
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CP4001: ANALYTICAL & PHYSICAL CHEMISTRY | | Formal Report of the Quantitative Determination of Sulphate by Gravimetric Analysis (Experiment 4) | Maryjo Lee Wei Min 1111107 DBS/FT/1A/01 | (A) Synopsis The amount of sulphate is determined quantitatively as barium sulphate by gravimetric analysis. This determination consists of slowly adding a dilute solution of barium chloride to a hot‚ unknown sulphate solution which is slightly acidified with concentrated hydrochloric acid. A white
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Littlefield Simulation Write-up December 7‚ 2011 Operations Management 502 Team 9 Littlefield Lab We began our analysis by searching for bottlenecks that existed in the current system. It was easily identified that major issues existed in the ordering process. Without calculations‚ you could tell the reorder point was too low since the historical plots showed inventory levels at zero for two or more days at a time. The number of jobs in customer orders showed correlating spikes at the same
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Bio 205 Lab W/8:00 Enzyme II Write-Up Methods: My partner and I ran two experiments to measure the activity of the enzyme horseradish peroxidase under varied conditions. The first of which measured the effects of altered pH levels‚ while the goal of the second was to examine the effects of varied temperatures. To test the effects of pH on horseradish peroxidase‚ we began by zeroing a Spec 20 with 5.0mL of substrate (25mM guiacol) at pH 6.5. Once the Spec 20 was accurately zeroed‚ we added 100μL
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In this experiment‚ gravimetric analysis will be used to determine the unknown metal carbonate. Gravimetric analysis. Gravimetric analysis is a method where an ion being analyzed can be classified through their mass (Yoder 2018). Due to the fact that carbonates can be hygroscopic‚ which means it would be able to absorb water from water vapor‚ extra precautions have to be taken place to be able to get an accurate mass (Helmenstine 2017). This can be done by using a drying oven and a desiccator. A
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BSC 1005 M-F 12:00 – 1:00 LAB 1- SCIENTIFIC METHOD HOW FAR CAN A MEALWORM CRAWL? Observations: 1. The scientific method allows for an organized and systematic approach to problem solving. It represents the “backbone” of scientific research‚ as well as a useful method in everyday decision making. The steps involved in the scientific method would include‚ but not be limited to‚ the following: 1. Statement of problem 2. Information gathering on research 3. Formulation of hypothesis/possible
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on the filter paper. Caution should be used as the root tips are very fragile 5. Transfer one of the garlic root tips to the clean microscope slide. Cut about 2-3 mm from the rounded growing tip. Keep this growing tip and discard the rest. 6. Break up the root tip with the mounted needle (this is called maceration). Add one small drop of toluidine blue and leave to stain for 2 minutes 7. Cover with the cover slip and blot firmly with several layers of filter/ tissue paper and press gently to spread
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current medications: None Present Labs done: x-ray‚ wound gram stain‚ blood typing Vaccinations Patient was given an anti-tetanus shot and tetanus toxoid upon arrival in the POC ER Family History unremarkable . Personal/ Social Patient is currently a security guard in the SSS Compound. She is single and she lives with 11 other household members (siblings‚ nieces‚ nephews) in a bungalow house in Frisco. She is a non-smoker and non-alcoholic. Stake holder analysis Patient is single and takes
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Gravimetric Analysis: The Determination of Phosphorus in Plant Food Gravimetric analysis is a quantitative (i.e. how much?) method of classical analysis. The element to be determined is isolated in a solid compound of known identity and definite composition. The mass of the element that was present in the original sample can be determined from the mass of this compound. Plant foods contain three essential nutrients that are not readily available from soils. These are soluble compounds
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Agnes Wong Professor Coyle Auditing-Case Write Up 30 September 2014 The Leslie Fay Companies Case Summary The Leslie Fay Companies is a women’s apparel manufacturer headquartered in New York‚ but with its accounting offices located in Pennsylvania. The company performed business in a way that did not utilize modern computerized systems to track sales and growth‚ but in an old-fashioned way that yet‚ still let them perform well in their revenues and earnings. The major names in this case include
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