"Molar hydrochloric acid" Essays and Research Papers

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    Purpose: To find number of moles of Fe+3 which react with one mole of NH3OH+ in order to partially balance the equation: NH3OH+ + 2Fe+3 "" ? + 2Fe+2 and to find the missing product. Procedure: H2C2O4 and H2SO4 were titrated with potassium permanganate. The molarity of the permanganate was then found because the molarity of the H2C2O4 and H2SO4 were already known. Then hydroxylammonium chloride and ferric sulfate and water was titrated with known potassium permanganate to get the molarity of the

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    3 Ways to Clean Your Toilet with Baking Soda Cleaning the toilet is probably the most irritating and tiring thing to do. The toilet is undoubtedly the filthiest part of our homes. You get fed up with scrubbing for hours and‚ in the end‚ you still feel that it isn’t clean enough. You experiment with many cleaning supplies but‚ none of them seem to work. Fortunately‚ we have the perfect solution to this problem. You can clean your toilet without wasting any time‚ money or energy. All you need are

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    Unknown Solutions  Possible Identification + Reason(s).      (Document Created by: RED)  Example Unknown  ● (1)  I  believe  this  solution  to be Copper(II)Hydroxide because  of the  following reasons:  ○ It has a  pH value  of 12 and burning it produces a blue­green  color.  ○ It  produced  bubbles  when  mixed  with  Zn‚  Al  and  Fe  which  are all more  reactive than copper.  ●   (2)  I  believe  this  solution  to  be  Sodium  Sulfate  because  of  the  following reasons:   ○ Blah blah blah 

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    As winter winds down to a close‚ it is time to get your pool ready for spring. Here are the first five steps you need to take to get your pool ready for your first spring swim. #1 Start On The Outside The first thing you should do is start on the outside of your pool. Clean up any leaves and debris around your pool that could potentially blow into your pool when you take the cover off or get tracked into the pool. Cleaning around your pool will save you from having to fish all that debris out

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    Baking Soda (NaHCO3) Lab (Stoichiometry) - Physical Science Name: __________________________________________________ Purposes: 1. Calculate theoretical mass of NaCl based on a known mass of NaHCO3. 2. Experimentally determine the actual mass of NaCl produced. 3. Calculate the percent yield for your experiment. Reaction Equation: NaHCO3(s) + HCl(aq) ( NaCl(s) + CO2(g) + H2O(l) Materials: safety glasses baking soda (NaHCO3) 1 M HCl and

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    NaCl Effects on Peroxidase Activity My experiment was to see if adding NaCl to solution would have any effects on peroxidase activity. The materials that were used in this experiment were pH 7 buffer(DI water)‚ peroxidase‚ NaCl‚ guaiacol and hydrogen peroxide; added in that order. Blanks were created for each NaCl concentration‚ 0%‚ 5%‚ 7.5% and 10%. Each cuvette had .5ml of pH 7 buffer‚ 1ml of peroxidase‚ .02ml guaiacol for the experimental cuvettes and 0ml of guaiacol for the blank cuvettes‚

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    / Beauty‚ Form and Function: An Exploration of Symmetry 1 TAN JUN RONG U1510605C 1 Writing Exercise – FePO4 Polymorphs Haines et al.‚ A neutron diffraction study of quartz-type FePO4: high-temperature behavior and α-β phase transition Z. Kristallogr. 218‚ 193-200 (2003). Paragraph 1 This writing exercise will be talking about how the structure of FePO4 will change from a low temperature of 294K to a high temperature of 1073K. There is a huge difference in both the cell parameters and atomic coordinates

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    Evaluation of gel A. pH: The pH of the various gel formulations was determined by using digital pH meter. B. Appearance: -The prepared gel bases were inspected visually for clarity‚ colour and presence of any particles. C. Homogeneity: All developed gels were tested for homogeneity by visual inspection after the gels have been set in the container. They were tested for their appearance and presence of any aggregates. D. Skin irritation test: Test for irritation was performed on human volunteers.

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    2.MATERIALS and METHODS 2.1. Nature of Reactants 2.1.1 We placed 3mL of 3 M HCl into each of 3 seperate test tubes. Next we added mossy zinc to the first test tubes‚ Sn granules to the second and Cu filings to the third and compared the rates of evolution of hydrogen gas in each test tube. 2.1.2. We mixed 3mL of 0.02 M KMnO4 and 2mL of 3 M H2SO4 in a test tube and stirred using a glass rod. Next‚ we divided the solution into two. We added 2mL of 0.03 M Na2C2O4 solution to the first half and

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    Mahlaqua Imran Chemical and Physical Changes Lab 09/09/13 I. Purpose: Identify the different changes as a physical change or a chemical change.  II. Safety: You may need safety goggles and gloves.  III. Pre-lab questions:  1. Identify the following as either chemical or physical changes:  a. Striking a match Chemical b. Food spoiling  Chemical c. Breaking a glass  Physical d. Mowing the grass  Physical

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