Lab 4 – Energy Sources and Alternative Energy Experiment 1: The Effects of Coal Mining |Table 1: pH of Water Samples | |Water Sample |Initial pH |Final pH (after 48 hours) | |Pyrite |6 |7
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experiment are first the oxidation of iodide to iodine, I2(aq), by the hypochlorite ion and then making the aqueous iodine reduce back to iodide by titrating it with sodium thiosulfate. The overall stoichiometry of the reaction is one mole of hypochlorous acid, formed by placing the sodium hypochlorite into acidic solution, plus two moles of the thiosulfate ion plus hydrogen ions from the solution yielding one mole of chlorite anions, one mole of the tetrasulfur hexoxide anion and one mole of liquid water
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Food Cultures Introduction: This experiment is performed to find any pathogens that is in produce in which people consume every day. We are attempting to determine the most effective way to wash produce so that there is the fewest amount of pathogens on it. In this case, we will be looking at pathogens that is on strawberries. Depending on the pathogens, it can be harmful for human; therefore, it is important to know what is contained in our food. A pathogen “is a biological agent that
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irritation. We can calculate and examine how the weak base from the tablet neutralizes the acid. The antacid tablet that is used in this experiment is TUMS. The two trials are designed to determine the average effect. The end result will be a compare and contrast of each trial to see the level of accuracy and what the overall experiment concludes. Dr. William Beaumont developed the knowledge of gastric acid. When he was a surgeon in the United States Army, a man named Alexis St. Martin suffered a
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The premise of this lab is to measure our enzymatic activity of Alkaline phosphatase, we began measuring our activity by applying different substrate concentration of p-nitrophenyl phosphate in relationship to absorbance over the span of 70 seconds, the data obtained in table 5.1, the different substrate concentration 0.9mM, 0.675mM, 0.45mM, 0.225mM, 0.09mM, 0.045mM, 0.0225mM. keeping our enzyme constant at 100μL, what we concluded is a significant decrease on the absorbance as we decrease the substrate
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Questions relating to Sanders and Hunter Chapt 7 1. The 31P spectrum of phosphate changes as the pH of the solution is changed, because it changes what is in the solution. It can make the phosphate change from its anionic form to its cationic form which changes the spectra because it reflects the molecular structure. 2. The time scale of the instrument is what determines whether the signals are averaged or separate, if it is in slow exchange the signals are spate and if they are in fast exchange
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What makes a substance an acid is if there are more positively charged hydroniums than negatively charged hydroxyls. An acid when dissolved in water increases the concentration of hydrogen ions. Acids are capable of neutralizing an alkali or base. Acids have a sour taste and on the pH scale it is anything below 7. A way to test out if something is an acid or base is by a litmus paper. A few examples of acids from lowest to most acidic are: urine, lemon juice, and gastric acid, which is in the stomach
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Biology 61 Lab Report Fall 2017 The Testing of Inhibitors for the Prevention of Fruit Browning Caused by PPOs Name: Jennae Fenton ID:989289378 Lab Code: R2 Purple Honor code compliance On my honor, I indicate with my personal signature that the work presented here is my own, and has not been plagiarized from another student or another source, in accordance with the honor code of University of the Pacific. (Please sign by typing your name or pasting an electronic signature if you have one) Signature:
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Whole house filters have become very popular nowadays due to the fact that they do a great job when it comes to water purification. Are you thinking to buy a unit like that as well, but you don't know how to choose a quality one? If so, then here it is everything you need to know before buying a whole house water filter. The first step is to test your water The first thing you need to do is to test your water that enters your house, and see what are the contaminants that are found in it. By doing
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Sodium and magnesium chloride are the simple iconic chloride and this means that these two are the ones which can easily dissolve in water, they don’t take too long to react and this is because they are very reactive metals. A neutral solution can be made when sodium chloride dissolves I water and this will allow it to make a slight acidic solution when the magnesium chloride gets dissolved in the water and this means that the solution will change mainly because it will show a difference in the way
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