Draw the mechanism for when tert-pentyl alcohol reacts with 3,5-dinitrobenzoyl chloride. Draw another mechanism for when tert-pentyl alcohol reacts with phenyl isocyanate please! 2 different mechanism total please!
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Draw the mechanism for when tert-pentyl alcohol reacts with 3,5-dinitrobenzoyl chloride. Draw another mechanism for when tert-pentyl alcohol reacts with phenyl isocyanate please! 2 different mechanism total please!
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- Accurately weigh out about 6g copper(ii) sulfate crystals into a weighing boat. Use the copper(ii) sulfate crystals to make up 250cm3 of standardized copper (ii) sulfate solution Pipette 25cm3 of this solution into a conical flask Add 1.5g potassium iodide and swirl thoroughly Titrate this solution with standard 0.1 moldm-3 Na2S2O3 in a burette. When the iodine color fades, add 1 cm3 starch indicator. Use your titration data below to calculate the percentage by mass of copper in the copper(ii) sulfate crystals.Procedure: 1. Heat denaturation – heat 2 ml of 2% albumin solution to boiling ina test tube. Add a pinch of NaCl. Observe theresult. 2. Denaturation by Acid – to 3ml albumin, add 1 ml of 1M sulfuric acid. Allow to stand for 10 minutes. Add 1 drops of methyl orange indicator. Note the color of solution. (methyl red is color red at pH below 5.3; yellow at pH above 5.3 and orange at near pH 5.3). Neutralize with 1M NaOH drop by drop stirrring after every drop until an orange color is obtained. 3. Alkali Denaturation – to 3 ml albumin solution, add 1 ml of 1M NaOH. Allow to stand for 10 minutes. Add 1 drops of methyl orange indicator. Note the color of the solution. Neutralize with 1M sulfuric acid drop by drop until a pink color is obtained. 4. Denaturation by Organic Solvents – add 3 ml of 95% ethyl alcohol to 3 ml albumin solution (which must contain some inorganic salts such as NaCl) and filter. Test the solubility of precipitated protein in water. 5. Precipitation by Metallic Salts –…Standard Preparation: 1. Weigh 10 mg of the Acetaminophen RS accurately and dissolve in 15 ml of methanol. Shake well. 2. Add 85ml of water to adjust the volume to 100 ml. 3. Pipet 5 ml from the stock solution and dilute to 50 ml with water. Test Preparation: 1. Weigh the 10 tablets individually and record on the worksheet provided. Powder 10 tablets and weigh a portion of the powders equivalent to 100mg. 2. 3. Transfer the powders into 100 ml VF. 4. Add 15 ml of methanol, shake to dissolve and dilute with water to the volume to make 100 ml. 5. Pipet 1 ml from the previous solution, transfer it into a 100-ml volumetric flask and dilute with water to volume. Instrument: UV-Vis Spectrophotometer Blank: water Cell- 1cm quarts cell Wavelength:243 nm Procedure: 1. Turn on the power switch. Allow the instruments to warm up for at least 20 minutes to stabilize the source and detector 2. After the warm up period, set the desired wavelength using the UP and DOWN arrows. 3. Using the MODE Key,…
- i need help determining amount recovered in an extraction. i started with a .51g mix of naphlathene/benzoic acid. then, i ended up with the organic in the flask weighing 56g, with the initial weight of the flask without product being 46g. how do i determine amount recovered AND the % recovery?Nitrous Acid Test Procedure: Make a solution of 4 grams NaNO3 in 16 mL water. Put 2 mL of concentrated hydrochloric acid into a 10x75-mm test tube and add 0.5 ml of amine. Cool the solution in a water-ice slush to zero degrees celcius. Add the nitrile solution slowly, dropwise, until a drop of the reaction mixture gives a blue spot on starch-iodide paper. The following should be tested: (NOTE: Include the observations and reaction equation) A. PRIMARY ALIPHATIC AMINES (Like Butylamine of Cyclohexylamine) B. PRIMARY AROMATIC AMINES I. Aniline + nitrous acid; then heat. II. Aniline + nitrous acid; then B-Napthol.In a liquid – liquid extraction, what is preferable? Three extractions with a small volume or one extraction with a large volume. Explain briefly.
- Which statement is valid when the multiple extraction and single extraction is compared. The effciency of multiple extraction and single extraction is incomparable. Single extraction and multiple extraction have the same effciency Multiple extraction is more efficent than single extraction Single extraction is more efficient than multiple extractionYour HRP sample had a concentration of 2.0 mg/mL and you added 10 uL to a tube containing 10 uL of 2X Sample Buffer. You mixed this well and then heated at 75C for 5 min. Then you added 10 uL of this solution to a well of a gel. How much protein did you add to that well?Drye quantity of primary standard potassium hydrogen phthalate (0HP) for about 2 heat 110°C (Fig 35-9), and cool in a desiccator. Weigh individual 0,7 to 0.8 g samples (to the nearest 0.Img) into 250 i conical flasks, and dissolve each in 50 to 75 mL of distiled water. Add 2 drops of phenolphthalein; titrate with base until the pink colour of the indicator persists for 30 seconds (Note). Calculate the concentration of the NaOH solution, 07624 g Velume ced (n)? Mass of KHP Initial volume () find volume (ml) 50 25 50 75 Titration 0 75 125 175 49 87 2 55 51 05 190 49 90 Calculate the concentration of the NaOH solution