this procedure were benzophenone‚ malonic acid‚ and biphenyl. These three solids were then mixed with water (highly polar)‚ methyl alcohol (intermediately polar)‚ and hexanes (nonpolar). When benzophenone is mixed with water the results turned out to be insoluble because benzophenone is a pure hydrocarbon‚ which are very insoluble in water. When benzophenone was mixed with methyl alcohol‚ it was soluble because Methanol can hydrogen bond to the carbonyl oxygen of benzophenone. When benzophenone was
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Synthesis of Salicylic Acid Experimental Data: 1. Mass of methyl salicylate used: 0.232 g 2. Theoretical yield of salicylic acid: 0.211 g 3. Volume H2SO4 added‚ with units (drops or mL): 3mL 4. Mass of crude salicylic acid obtained: 0.250 g 5. Volume of water used as recrystallizing solvent: 2 mL 6. Mass of purified salicylic acid: 0.134 g 7. Percent yield of purified salicylic acid from reaction: 63.5% 8. Melting point of purified product: 158-160 oC 9. Name of NMR solvent used and
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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 remain unchanged | A little methanol and concentrated sulphuric acid is added to boric
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to be a drug that relives people of pain and is commonly used even today. It is synthesized from salicylic acid and ethanoic anhydride‚ both of small quantities. Phosphoric acid was used as a catalyst in the synthesis to speed up the process. Esterification is involved and the final product is aspirin with the presence of acetic acid as the byproduct. In order to create the powder form of aspirin‚ the process of crystallization was conducted and was run through vacuum filtration. After running through
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mistakes that may have been made during the titrations. II. Results A solution of “stomach acid” was created by mixing .6M (moles/liter) hydrochloric acid (HCl) with distilled water to create a solution with a volume of 75 milliliters (mL). Methyl red‚ an indicator that changes colour at a pH of 4.2-6.2‚ was added in order to determine the equivalence point (when amount of acid equals amount of base) of the titration. This was then titrated to the end point (the indicator’s colour change)
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over-titration had occurred | | 11.10 | 12.90 | 1.8 | | | 12.90 | 14.40 | 1.5 | | | 14.40 | 15.90 | 1.5 | | Methyl Orange | 15.90 | 16.90 | 1.0 | Reaction occurred quick‚ over-titration occurred and solution turned from red to orange | | 16.90 | 17.20 | 0.3 | | | 17.20 | 17.40 | 0.2 | | | 17.40 | 17.60 | 0.2 | | | 17.60 | 17.80 | 0.2 | | Methyl Red | 0.00 | 5.00 | 5.0 | | | 5.00 | 7.80 | 2.8 | Solution turned from red to a light orange/yellow color | | 7.80
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Introduction Methyl Salicylate has been used for a long time for its pleasant odour and flavour. The objective of this experiment was to carry an organic synthesis; the preparation of salicylic acid from methyl salicylate. To do an organic synthesis‚ it is needed to chemically modify the molecules of another compound to end up with the desire compound. Methyl salicylate is the major constituent of wintergreen oil‚ which is why it was used in this experiment as the starting material. The new technique
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Magnolia claim that there is a big difference between real fruit drinks that contains at least 10% real juice and artificial fruit drinks which contain less than 10% and depend more on artificial flavoring and chemical preservatives such as sodium benzoate to keep some products from easily spoiling. You are a marketing manager of zest – o‚ what would you do to the public challenge of magnolia assuming: a. You don’t have at least 10% juice content b. You have at least 10% juice content A
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Reaction: Kinetics Study of Hydrolysis Reaction of Methyl Formate Using An Acidic Ion Exchanger. Objectives : 1. To study the effect of high activation energy upon k values of methyl formate. 2. To report the rate law expression for decomposition of methyl formate. 3. To determine the integrated rate law for methyl formate. 4. To demonstrate how rate constants vary with temperature and activation energy. Chemicals and Apparatus : 1. Methyl formate (m.w. = 60.05 g/mol‚ d= 0.97 g/mol) 2. Methanol
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Upon addition of bromine‚ the brown color of bromine quickly disappears as the bromine adds to the double bond in the products. Addition of bromine to the fractional distillate caused the bromine to discolor. The addition of bromine to 2-methyl-cyclohexanol remains brown because there is an absence of double bound (saturation). Addition of potassium permanganate caused the solution to turn slightly brown but appeared immiscible as result of the unsaturation product. When analyzing the IR
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