EXPERIMENT V POTENTIOMETRIC TITRATION These files are in Adobe Acrobat format‚ if you are using Netscape Navigator or Internet Explorer and have Adobe Acrobat Reader installed (If you do not; Acrobat Reader can be downloaded for free from Adobe) these files should open directly in your browser. INTRODUCTION Many Acid-Base titrations are difficult to accomplish using a visual indicator for one of several reasons. Perhaps the analyst is color-blind to a particular indicator color
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recipes for slime with different characteristics. 2. The slime is made by preparing two separate solutions‚ which are then mixed. You can double‚ triple‚ etc. the recipe if you want more slime. The ratio is 3 parts PVA or glue solution to 1 part borax solution‚ with a little glow-in-the-dark agent thrown in (measurement isn’t critical).
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reacted them with sodium borate (borax). Polyvinyl acetate (PVA) is a water-soluble synthetic polymer. It has the idealized formula [CH2CH]n. Polyvinyl acetate (PVA) is a synthetic resin polymer. The chemical formula of this component is (C4H6O2)n. The last component is sodium borate (Borax). It is an important boron compound‚ a mineral‚ and a salt of boric acid. The chemical formula for sodium borate is (Na2B4O7·10H2O). In this experiment‚ both the sodium borate (Borax) and polyvinyl alcohol (PVA)
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Date Performed: January 10 & 15‚ 2013 Spectrophotometric Determination of the Equilibrium Constant of a Reaction R.J.V. Ortega and J.C.V. Gatdula Institute of Chemistry‚ College of Science University of the Philippines‚ Diliman‚ Quezon City‚ Philippines Received January 22‚ 2013 ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- ABSTRACT -------------------------------------------------
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SSN COLLEGE OF ENGINEERING DEPARTMENT OF CHEMICAL ENGINEERING V Semester – CH 2307 TECHNICAL ANALYSIS LAB -2010 INDEX SHEET CYCLE ONE Date of Condn. Date of Subn. Sign 1 Estimation of COD of the given sample of water. 2 Estimation of Manganese in the given pyrolusite ore. 3 Estimation of Magnesium by EDTA method. 4 Estimation of purity of drug using pH meter. 5 Estimation of Ammonia in ammonium salts. 6 Polarimetric estimation of sugar
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from one extreme to the other. Some combinations were either to goopy or so firm that in either case the ability to hold shape and bounce was void. Eight test were conducted using our final sample which was the mixture of 10ml of PVA and 10ml of Borax as the best sample. We ran two tests each at Room temperature‚ two test 0° C‚ two tests at 50° C‚ and two tests at 100° C. The two tests we ran at each temperature were how high the ball bounced starting at 100 cm‚ and how many times the ball bounced
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this experiment‚ we took two TUMS tabs and through a back titration‚ we were able to find out how much acid was needed to neutralize two tablets of TUMS. In the first process of the titration‚ we added excess HCl and then we had to back titrate it by adding NaOH. We had to do a standardization test because the NaOH has a high reactivity and that could cause a small change. The NaOH solution was supposed to have a molar concentration of .5 however when we standardized the solution we found the actual
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Introduction to Chemistry Laboratory: A Lesson on Tools‚ Techniques and Measurements PURPOSE: The purpose of this set of experiments (3 total) is to become familiar with the common types of laboratory glassware and equipment‚ and how to obtain and analyze data from these items. LEARNING OBJECTIVES: By the end of this experiment‚ the student should be able to demonstrate the following proficiencies: 1. Know which glassware (beakers‚ burettes‚ pipettes‚ graduated cylinders‚ flasks‚ etc) should
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Experiment N | Kinetics of the Depolymerization of Diacetone Alcohol via Basic Catalysis | | Ingrid Tafur -5672578 | 2/11/2011 | CHM233O Partner: Laura Marrongelli Demonstrator: Cheryl McDowall Objective The rate constant of the depolymerization of diacetone alcohol via basic catalysis was determined by monitoring the change in volume as a function of time at constant temperature of a pseudo first order reaction where the species in excess was sodium hydroxide. This was accomplished
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often in the form of a powder substance or in the form of a crystal. You cannot find boron in nature unless it’s in another compound such as borax. The United States and Turkey have the highest reserves of borax. However boron is usually found in other compounds in the real world since it is very difficult to isolate. The easiest way to get boron is by heating borax and carbon. Boron is a poor conductor of electricity at room temperature but when at high temperatures boron shows good conductivity. Boron
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