Chemistry 1211K Lab Report Briana Limage Drawer #D20 Tuesday December 2‚ 2014 Lab Day and Time: Tuesday 2-5 Unknown # 4224034-DF14 Introduction The purpose of this semester long experiment was to determine an unknown organic acid. An organic acid is an organic compound with acidic properties. A base reacts with acids to form salts. Titrations are used to determine the concentration of unknown substances. The purpose of the KHP experiment was to determine the molarity of NaOH. HCl titrations
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| Melting Pt(C) | Phenopthalien | 318.32 | 1.277 | N/A | 260 | NaOH | 39.9971 | 2.13 | 1388 | 318 | Ethane | 30.07 | 1.3562 | -89 | -183 | HCl | 36.46 | 1.490 | -85.05 | -114.22 | Chemical Reactions Procedure In this experiment two solutions were prepared for two kinetic runs. Solution #1 (50%ethanol 50% water) and Solution #2 (40% ethanol and 60% water) was added to another Erlenmeyer flask. Next‚ 0.10M of NaOH was filled up to the 0.00ml mark in two 50-ml burettes. Placing the
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Potentiometric Titration of Sodium Carbonate Otieno O. Victor University of Detroit Mercy Quantitative Analysis Lab CHM 3880 Fall 2011 Partner: Edwin Gay Abstract The PH at each point during the titration of sodium carbonate unknown sample was determined. An Unknown sample of Na2CO3 was titrated with a standard HCL solution. In addition to titration‚ the pH at each point of titration was measured using PH meter. The % of the unknown Na2CO3 was 25.83% Introduction1 The purpose of this experiment
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the ionization of a weak organic acid such as acetic acid by NaOH. CH3COOH(aq) + NaOH - + CH3COO Na + H2O As more of the strong base (titrant) is added to the aqueous solution‚ more of the weak acid is converted to its conjugate base. During this process‚ a buffer system forms and the pH of the system will follow the HendersonHasselbalch relationship. The titration curve of the neutralization of acetic acid by NaOH will look like this: pH 0.5 equival ent s pH = pKa
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Physical and Chemical Reactions Lab #4 Alesa Cannon Objective: To investigate the physical and chemical properties of a pure chemical substance. Procedure: 1. Half-fill one well of a 24-well plate with 6 M HCl and half-fill a second well of the 24-well plate with 6 M NaOH. Suck up these chemicals into their labeled pipets for later use. 2. Perform the following steps on each of the substances to be tested. Complete all tests of one substance and record your observations before proceeding
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column‚ the KCl solution will displace the solution surrounding the resin and that solution will elute from the bottom of the column. In the process‚ as the KCl solution passes down the column‚ K+ ions displace (exchange with) H3O+ ions and aqueous HCl (H3O+ + Cl-) elutes from the column‚ Equation 2. R-SO3-‚H3O+ + K+ + Cl- R-S)3-‚K+ + H3O+ + Cl- (2) Thus the solution coming out of the column will contain a quantity
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Lab 5 The Diffraction Grating Chinua McDonald Objective: To measure the wavelength of light with a diffraction grating. Theory: The two types of diffraction gratings are the transmission and reflection gratings. They are made by ruling on a piece of glass or metal a number of evenly spaced lines with a fine diamond point. Diffraction phenomena can be analyzed in terms of Huygens’ principle‚ according to which every point on the wave front of a wave should be considered as a source
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Title: I was a disappointment to my Dad 2004 was the year my father developed a taste for schedules and routines. It was‚ and still is‚ his way of making sure that things are in order‚ and I suppose it was his way‚ when we were younger‚ of ensuring there was some consistency in our daily lives. When Mum left‚ I think that was all he could think to do – giving us something fixed‚ something to fall back on‚ something to let us know that our world still stood firm even as his was falling
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Strategies: Low prices: $1.2 per day -$3 cheaper on average Convenience: Packed into high traffic locations Supermarkets McDonald’s Drugstores Increase kiosk locations Since 2009 locations have increased from 20‚000 to 34‚600 The se strategies are unique and cost efficient Unique because no other movie rental company uses kiosks Which in turns reduces initial investment and operating costs SWOT: Strengths Own websites Return any movie at any Kiosk Cheap prices
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Luxor Technologies 1. Can the impact of one specific risk event‚ such as a technical risk event‚ create additional risks‚ which may or may not be technical risks? Can risk events be interrelated? The technological risks identified in Exhibit I associated with advancements in scientific research and state-of-the-art developments pose a potential risk to other segments of Luxor’s processes. If those risks are not addressed‚ products manufactured by the company will not meet the standards required
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