Preparation and properties of boric acid Result The mass of borax‚ g | 10.0734 | The mass of watch glass‚ g | 36.2842 | The mass of watch glass with product‚ g | 39.9803 | The mass of product‚ borix acid‚ g | 3.6961 | Test | Result | Boric acid is dissolved in water and methyl red indicator is added. | Pink solution is observed | Mannitol is dissolved in water and methyl red indicator is added. | Pink solution is observed | Both solution is added together | The colour of solution
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Chemistry Investigatory Project Anand Vihar School Bhopal Topic: Study of Adulterants in Food Stuffs Submitted By: Submitted To: Devanand Vyas Mrs. Surbhi Mam XII XII ‘A’ 25 Acknowledgement I owe a great many thanks to a great many people who helped and supported me during the writing of this book. My deepest thanks to
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smaller electrode potentials as compared with the other oxidants‚ gaining them the advantage of imparting a degree of selectivity essential in the determination of strong reducing agents amid the presence of weak agents. Although regular re-standardization was essential for Iodine solution due to its lack of stability‚ it was still suitable for titrations due to its advantage of having sensitive and reversible indicator [5]. Reduction-oxidation titrations involving iodine were classified mainly
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energy with little to no emissions (Wakefield 36). Working to develop a workable hydrogen fuel cell vehicle‚ Millennium Cell‚ a small start-up company in New Jersey‚ has come up with a system that creates energy by utilizing sodium borohydride (Borax)‚ a common ingredient in soap‚ as the fuel. When the fuel contacts a catalyst‚ the ensuing reaction creates hydrogen gas‚ this‚ combined with oxygen from the air‚ is the basic formula for driving their prototype fuel cells. Recent tests with Millennium
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Bouncing Ball Timothy English Gen. Chem. 1 Lab Section: 009 Introduction: Poly-Vinyl Alcohol (PVA) is a water-soluble synthetic polymer that will be used as one element to form the well know bouncing ball‚ along with Sodium Borate (borax)‚ which has a variety of uses because of its weak base. PVA is ideal for this experiment because it is odorless‚ nontoxic‚ has high tensile strength and flexibility. The binder characteristics of PVA offer excellent adhesion to porous‚ water-absorbent
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Pencils (3) * Identical jars or large drinking glasses (3) * Pot with a lid * Borax (also called 20-Mule Team household cleaner); * Tablespoon * Plastic wrap‚ wax paper‚ or aluminum foil * Gloves‚ latex or similar style exam glove (optional). Can be used if there is concern over handling borax Experimental Procedure 1. In this science fair project‚ you’ll be recrystallizing borax under three different temperature conditions: in a refrigerator‚ at room temperature‚ and
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Determine the concentration of acetic acid of vinegar‚ in terms of (m/m). Introduction Neutralization is a reaction of an acid with a bases to produce a salt and water. For example‚ the reaction of the strong acid HCl with the strong base NaOH produces the salt sodium chloride and water HCl(aq) NaOH(aq) ( NaCl(aq) H2O(l) Since the acid‚ base‚ and salt in this reaction are all strong electrolytes‚ the net ionic equation for this reaction is H(aq) OH-(aq) ( H2O(l) This same result occurs in the
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Compleximetric Determination of Water Hardness Caindec‚ Patricia Ysabel B. Water hardness is a measure of the amount of calcium and magnesium carbonate dissolved as Ca 2+ and Mg 2+ in water. There are no health hazards associated with water hardness‚ however‚ it causes scaling‚ as well as forming of soap suds. Compleximetric titration is one of the best ways of measuring total water hardness using a standard ethylenediaminetetraacetic acid (EDTA) solution. EDTA solution is used as it has the
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Essentially‚ by combining guar gum and borax you can create slime. If that’s all you want to know‚ that’s okay. Usually‚ these names are not found on packaging‚ but by their scientific names. Guar gum is also known as polysaccharide‚ and borax is called sodium borate. This is why some people use eye drops as part of their slime solution. Eyedrops have sodium borate‚ which when mixed with glue (and occasionally baking soda) creates slime! The other option is borax‚ which can every so often be harmful
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A 10:1 ratio between polyvinyl alcohol and sodium borate was used. We used this ratio because while conducting research‚ there was a similar experiment to the polymer ball and it said a 10:1 ratio was used. 5mL of borax and 50mL of polyvinyl alcohol was poured into a 250mL beaker. Then the mixture was stirred for about 10 minutes until the mixture became a sticky substance. 55mL of polyvinyl acetate was then poured into the mixture. The mixture was stirred for 2-3
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