the formation of a precipitate. Materiel needed: Test tubes Rack of test tubes Plastic droppers Beakers Procedure: We prepare 7 beakers of 7 different solutions (that we mark from 1→ 7). We put separately around 50 ml of: HCl NaOH Na2CO3 K2CrO4 CaCl2 CuSO4 Unknown substance Using plastic droppers we mix 10 drops of one solution with 10 drops of another solution in a test tube‚ to get all in all 20 different test tubes. We then note the observation for each test tube. Name
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Aim: To compare the foaming capacities of five different commercial soaps. Apparatus: 5 test tubes‚ 5 conical flasks (100 ml)‚ test tube stand‚ Bunsen burner and stop watch. Materials Required: 5 different samples of soap and distilled water Theory: The foaming capacity of a soap sample depends upon the nature of soap and its concentration. This can be compared for various samples of soaps by taking the same concentration of solution and shaking them.The foam is formed and the time taken
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CHEM 1474-E01 Chemistry for Everyday WEEK5 Lab Report Spring 2017 Instructor: Kyoung Nan Kim Office: SI3076 Email: kyoung.kim@ucdenver.edu Office hour: M/W 1:00p-2:30p (SI3076) T/Th 12:30p-1:30p (SI3076) • All communication should be done via school email (xxxx@ucdenver.edu) • The work will be submitted through canvas assignments. You can simply upload doc/pdf files under “Lab report” assignment tap. • Review: Ch2‚ Ch3.5‚ Ch 4.2‚ Ch6.1 and Ch7.1-Ch 7.3 in your text book (21st
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Synthesis of Salicylic Acid from Wintergreen Oil Objective – Preparation of salicylic acid (organic synthesis) from methyl salicylate utilizing previously used procedure from the nineteenth century. The final product will then be evaluated in comparison to salicylic acid made from benzene. Discussion – In this synthesis‚ methyl salicylate is the starting material or precursor and salicylic acid is the target product. It is the major constituent of wintergreen oil. The difference in structures
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determine the structure of the product the relative concentrations if more than one product is made. Procedure: State exactly what was done during the experiment. Results Provide the following quantities and calculations: Mass of product‚ Limiting reagent‚ Theoretical yield‚ Percent yield‚ melting point of product. State integration‚ chemical shifts of all peaks or reagions of peaks and Splitting (singlet‚ triplet‚ quartet). If there are many peaks jumbled in one area such as in the aromatic
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60% SUMMARY OF LEARNING OUTCOMES 1. Describe composition of matter and chemical change. 2. Explain trends within the periodic table. 3. Describe Chemical Bonding in its various forms 4. Calculate chemical quantities and stoichiometry 5. Explain Oxidation - Reduction reactions 6. Demonstrate a knowledge of Organic Chemistry (Optional Element) LEARNING OUTCOME | ASSESSMENT CRITERIA | 1. Describe composition of matter and chemical change. | 1.1 Describe the nature
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we determined the activity order of the metals used based upon our results. Data Sheet: Part A: Reaction #1A: Na2CO3(aq) + HCL(aq)(0.5m) H2CO3(g) + 2NaCl(l) H2O(l) + CO2(g) + 2NaCl(l) Observations: There was a formation of a gas and the liquid was clear. Reaction #2A: Na2CO3(aq) + NaCl(aq) Na2CO3(aq) + NaCl(aq) Observation: No reaction was observed. Reaction#3A: Na2CO3(aq) + CaCl2(aq) 2NaCl(aq) + CaCO3(s) Observations: The solution turned white and cloudy which is evidence that
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confirmed the identity of benzylic acid with two OH peaks and the carbonyl peak. Introduction The purpose of this experiment was to synthesize benzilic acid from benzoin. Part A was omitted from the experiment and benzoin became the starting reagent. For this experiment a multistep synthesis was required. In the first part (Part B) benzoin was oxidized using nitric acid to make benzyl as a product. This reaction is characterized by the orange gas of nitrogen oxide that is liberated as a byproduct
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KWAME NKRUMAH UNIVERSITY OF SCIENCE AND TECHNOLOGY COLLEGE OF TITLE: REMOVAL OF HARDNESS OF WATER USING PRECIPITATION AND COMPLEXATION METHODS. NAME: KWARTENG YAW PRINCE COURSE: BSC. ENVIRONMENTAL SCIENCE YEAR: FIRST YEAR EXPERIMENT NO. : A.1.1.3. T.A.: BRIGHT KOFI LEONARD DATE: 7TH NOVEMBER‚ 2007. Aims and Objectives: 1. To describe water hardness.
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| | KCl | Na2SO4 | NaOH | Na2CO3 | Test solutions | SrCl2 | No reaction | Reaction | Reaction | Reaction | | AgNO3 | Reaction | Reaction | Reaction | Reaction | | BaCl2 | No reaction | Reaction | Reaction | Reaction | | MgCl2 | No reaction | No reaction | Reaction | Reaction | Data Balanced equations: SrCl2 (aq) + KCl (aq) NO REACTION SrCl2 (aq) + Na2SO4 (aq) SrSO4 (s) + 2NaCl (aq) SrCl2 (aq) + 2NaOH (aq) Sr(OH)2 (s)+ 2NaCl (aq) SrCl2 (aq) + Na2CO3 (aq) SrCO3 (s) + 2NaCl (aq)
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