Bacon‚ Toast‚ Sodium Nitrate and Potassium Bromate For Breakfast Samuel Martino Have you ever looked at the ingredients on the side of a food package? There is a lot more than the main food in the package. Usually it has real food then several different chemical compounds and preservatives listed behind the real stuff. In some foods the ingredients include chemical compounds as sodium nitrate and potassium bromate. Sodium nitrite is an ionic compound and is identified by the chemical formula
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Experiment #5: Acid Burn!!! Introduction The goal of this lab was to correctly prepare a 0.2M solution of NaOH‚ identify highly acidic household cleaning chemicals‚ and determine their concentration (molarity) through titrations using the previously prepared 0.2M NaOH solution. Experimental First‚ to create 0.5L of 0.2M solution of NaOH‚ standard 3M NaOH solution was obtained. Next‚ calculations were performed to determine the amount 3M NaOH necessary to create 0.5L of the 0.2M solution and‚ as
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Weak Acid Titration Abstract: Our method for determining the unknown weak acid was to determine the equilibrium constant K from the molecular weight of the weak acid from our titration data. In this lab the acid Potassium hydrogen phthalate and two unknown acids were titrated. We determined the molar mass of the Potassium hydrogen phthalate‚ for the unknown acids we calculated the molar mass and the Ka values. We used NaOH as the known base for titrating in all three of the titrations. Our
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Plan On Acids & Bases May 25‚ 2006 Table of Contents I. General Objectives Page 3 II. Learning Outcomes Page 4 III. Assessment‚ Grading & Resources Page 5 IV. Tending to different Learning styles Page 7 V. Schedule Page 8 VI. Appendix 1 Page 20 Acids and bases Unit plan Grade 12 General Objectives: ▪ Introduce pH‚ acid and base definition ▪ Discuss acid‚ base‚ strong
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Extracted From?.................................................................................................................. 7 Bibliography………………………………………………………………………………………..9 DNA What is DNA? DNA is a molecule called deoxyribonucleic acid which contains the biological instructions‚ meaning it explains about living species; it makes each species unique. It is passed from adult organisms during reproduction‚ along with the instructions it contains. Where is DNA Found? DNA
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EXPERIMENT: 1 Object: To find the wavelength of Sodium light by Newton’s ring. Apparatus required: A Plano convex lens of large radius of curvature‚ optical arrangement for Newton’s rings‚ plane glass plate; sodium lamp and traveling microscope. Formula used: The wavelength of light is given by the formula λ =D n2+p –Dn2 / 4pR Where D n+p = diameter of (n+p)th ring Dn = diameter of n th ring‚ P = an integer number‚ R = radius of curvature of the curved face of the Plano- convex lens.
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food manufacturer to determine if sodium benzoate‚ a common food preservative‚ undergoes significant chemical changes at the pH level encountered in the acidic environment of the stomach. Experimental Method Sodium benzoate was prepared by addition of an equimolar amount of aqueous sodium hydroxide (3 M‚ ~ 20 ml) to a benzoic acid (1.256 g‚ 10.3 mmol) /water mixture (10 ml). Benzoic acid is insoluble in water. The hydroxide base rapidly deprotonates the acid‚ producing the benzoate anion which
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De-esterification for Synthesis of Benzoic Acid BATCH REACTOR Shane Bulk Chris Crosley David McGuire Max Skula Yunjing Song Shriram Sundarraj Nelson Zhou 155:416 Process Laboratory II Professor Jerry Sheinbeim January 28 – February 28‚ 2014 ABSTRACT The observed reaction that took place in this experiment was the de-esterification of ethyl benzoate to form benzoic acid. This experiment was used to determine the rate constant k of the synthesis of benzoic acid at different temperatures and
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TITLE : * Analysis of an unknown acetic acid solution OBJECTIVES : * To prepare the sodium hydroxide solution‚ NaOH * To standardise the base against potassium hydrogen phthalate * To analyse the unknown acetic acid RESULTS : A. Preparation of the sodium hydroxide solution Volume of NaOH taken from the stock solution = 3.33 mL B. Standardisation of the base against potassium hydrogen phthalate | 1 | 2 | 3 | Weight KHP | 1.0000 | 1.0004 | 1.0006 | Final volume
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of 0.1M Sodium phosphate Monobasic‚ which equal 2.9995g‚ we added it to the 250ml beaker and added 50.0ml of water to dissolve it. On the same time‚ we prepared 250ml of 0.1 Sodium phosphate Dibasic‚ which equal to 3.549g; we added 50.0ml of water to be dissolved. We made these two solutions in order to get their PH. We started with PH 6.0 buffer from Sodium phosphate monobasic solution‚ we added 50ml of Sodium phosphate Dibasic to 250ml beaker‚ placed PH probe‚ then added solution Sodium phosphate
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