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- Describe some observations you found fascinating. Discuss the purpose of acquiring a melting point and what it means to a budding scientist, like you! Discuss how we might have lost material in the experiment (i.e. operational error)? List the two major functional groups ( and ) present in the structure of acetylsalicylic acid. Weight of tablet = 2grams Weight of ASA recovered or isolated = 100mg. Please answer those 2 not graded thanksAn organic chemistry laboratory Extraction; the extraction of crude naphtalene- benzoic acid mixture. Naphthalene is a suspect carcinogen and is toxic to aquatic life. Find an alternative pair of molecules that adhere better to the principles of green chemistry and can be separated by extraction using green' solvents. (kindly answer fully)What is the percent yield of 4-benzylidene-2-methoxozol-5-one relative to glycine - Show all calculations (including determining limiting reagent and balanced equations) - Maximum percent yield for each step is 100% Information: - Start with 0.62g of glycine - 1.5mL of acetic anhydride - 3mL of water - Acetylgycine product measured: 0.61g - Used all acetylglycine product in next step - Measured 0.43g of potassium carbonate - Added 3mL of acetic anhydride - Added 0.60mL of benzaldehyde - Crude product measurement: 1.04g - Pure product isolated: 0.18g
- When aspirin is made from acetic acid, the by product is H2O; when acetic anhydride 1Sused, the by-product is acetic acid. When acetyl chloride is used (see above), the by product is HC1. Which route should you use if you were working for Leica, a company that mass produces aspirin on a daily basis? Why?Consider analysis of a mixture of saturated and unsaturated triacylglycerols (fish oil) Consider 3 methods: IR, NMR and GC-MS . How are these methods been used to characterize these molecules. Answer: What structural information can be obtain using each method? What are the limitations of each method? Lastly, if you were to use only one which would provide the most detailed structural characterization? Include pictures (structures, spectra etc.) and references with hyperlinks.ood evening to whom it may concern, I hope you are doing well on this fine day, before starting with the question I found on the FAQ Bartleby, I know that Im allowed to share up to "Submit only one question at a time under the appropriate subject. A question can have up to 3 subparts (i.e. part a, b, and c)" where the following link leads to the Bartleby FAQ if you do not believe me https://faq.bartleby.com/hc/en-us/articles/360017462394-How-can-I-ensure-my-questions-get-answered-as-quickly-as-possible- Therefore the following question is only one question with multiple parts to it "subparts" so please answer all the questions. For the following question please read carefully the question and instruction. If you do answer the question correctly and post it in the next 20 minutes with full steps. I will write a wonderful and generous feedback/review/rating about you if you do as what I prescribed. Thank you very much.
- In parts 1 and 2 draw the two organic products of this reaction, showing any nonzero formal charges. Then, in part 3 answer the question regarding purification of the reaction mixture. 1. Draw the product with the higher molecular weight here 2. Draw the product with the lower molecular weight here 3. Which method would be the simplest and most effective means to best separate the two products? (extraction, recrystallization, chromatography, distillation)Using the table of the weak base below, you have chosen Methylamine as your weak base in the buffer solution. You have already added enough of the conjugate acid salt to make the buffer solution concentration at 0.48 M in this salt. The desired pH of the buffer should be equal to 9.75. 2. Compute for pKb (Write your answer in 2 decimal places).you plan to carry out the syn- thesis of aspirin (acetylsalicylic acid) by reacting salicylic acid with acetic anhydride, using 85% phosphoric acid as a catalyst. In addition to aspirin, acetic acid will be a side product. Using one of the suggested online sources (such as the Sigma-Aldrich or Acros Organics websites), look up the molar masses for all of the reagents and products in this reaction. Also look up the melting points of salicylic acid and acetylsalicylic acid and the boiling points and densities of acetic anhydride and acetic acid. Your answers should include both the molar masses and the physical properties for all four reagents and products.
- After graduating from your PhD, you are now working as a post-doctoral researcher in BASF , the world’s largest multinational chemical company. The management of your R&D department decided to look at the potentiality of chloroform-methanol mixture in removing the lipids of various biological systems. Your boss, a senior scientist at your department, thinking about the hydroxyl group on the alcohol and thet hree chlorines on the CHCl3 , suggested that the mixture is probably non-ideal. Being one of her brightest colleagues, she then tasked you to graph the partial molar enthalpies of the chloroform methanol mixture as a function of mole fraction. Ardently, you accepted the challenge and went back to your office. After several hours of searching, you finally come up with enthalpy of mixing data at 50oC fort his mixture (See the picture). Please provide the graphs that the boss has asked you for. Put both curves on the same graph. Note: provide your excel file for this2.1g of sample are dissolved in methylene chloride and the sample is extracted with an aqueous solution of acid and base. Three compounds are isolated - 0.7g of ethyl p-aminobenzoate, 0.6 g of acetanilide, and 0.5 g of benzoic acid. Calculate the % composition of ethyl p-aminobenzoate in the recovered mixture. (Round the answer to 1 significant figure. Give just the number, not a % sign.)You are performing a transesterification and need to get your reagents ready. You are starting with 28.60 grams of your triglyceride which has a molecular weight of 927.48 g mol-1. a) How many moles of triglyceride do you have? b) How many grams of methanol will you need if the ratio of triglyceride to methanol is 1:8 in your reaction? Ensure you report to the correct number of significant figures for both and show your working.