Synthesis of Aspirin

how many equivalents of 6M NaOH would you add (in other words, what molar ratio of 6M NaOH to triester do you need) so that the reaction runs as pictured?

Often, you are just trying to write the equations as one big equation.  It is easier to follow what is going on if we write them one at a time;CH3)3CCl + H2O --> (CH3)3COH + Cl- + H+this reaction produces tert butyl alcohol, which we can not measure directly. so we titrate the solution with NaOH, and the parts that react with the base is H+H+  + Cl-    +   NaOH  ->   H2O and Na+ and Cl- we can determine when we have reached the endpoint with the help of the indicator. since every mole of NaOH reacts with a mole of H+.  if we know the moles NaOH used we can find the moles of H+ created. In the first equation, we learn that every mole of tert butyl chloride produces 1 mole of H+ and 1 mole of tert butyl alcohol (our desired product). therefore moles NaOH = moles H+  = moles tert butyl alcohol. explain how you can calculate product concentration.

13-CH2-O+ nA- WATER SOLUB X bapps/assessment/review/review.jsp?attempt_id= 4910689_1&course_id=_69748_1&content_id= 3071. IVE Round your answer to the second decimal place. Selected Answer: 8.26 estion 8 In an aqueous solution at 25 °C, when the [OH"] > [H3O*] which ONE of the following is true? Selected Answer. The pH is less than 7 and the solution is acidic. Answers! The pH is greater than 7 and the solution is basic. The pH is greater than 7 and the solution is acidic. The pH is less than 7 and the solution is acidic. The pH is less than 7 and the solution is basic. Question 9 in a 11 ratio during a neutralization reaction?

please give me step-by-step solution and circle answer please

. What reaction occurs when sodium hydroxide is added to the stearic acid in cyclohexane and water?How does this change the solubility of cyclohexane in water? Does HCl reverse this reaction and if sowhy? Does sodium chloride have the same type of behavior as stearic acid or is it different? Explainwhy these two solutes are the same or different. (do not copy an answer from chegg, please)

Can you please correct my table. I am sure I have gotten some wrong answers.  Possible solvents: water, 5% HCl, 5% NaHCO3, 5% NaOH, methanol or/and hexanes Compound Solubility (react with): Acetamide water, HCl, NaOH, methanol Adipic Acid NaHCO3, NaOH, methanol Benzoic Acid water, NaHCO3, NaOH, methanol Biphenyl hexane Cholesterol NaOH, hexane

What is the concentration of hydrochloric acid? Find the concentration using the information given below.  Equipment used in the lab:   50 mL burette   X M H2SO4 solution (aq) • Two 50 mL beakers   0.10 M NaOH (aq)   Procedure:   25 mL volumetric pipette  • Bromothymol blue indicator  • Pipette pump   • 250 mL Erlenmeyer flask   Observations from the Titration Lab.   Trial 1  Trial 2  Trial 3 Final burette reading 14.6 mL 27.85 mL 40 mL Initial burette reading 0 mL 14.5 mL 27.85 mL Volume of H2SO4 (aq) added 25 mL 14.6mL 13.35 mL 12.15 mL

57% O P 6:01 Asiacell l. التجربة الرابعة - اول مسائي.pdf امتحان بالتجربة الرابعة المرحلة الأولى مسائي Answer these questions: Examination time: 30 min Q1// Complete these statements: 1- Titrand should be put in ..... 2- Indicator should be added to ..... 3- Titrand have known ....... and unknown ...... 4- Indicator is used to ........ 5- Titrant have known....... and unknown ......... 6- Titrant should be put in ... Q2// prepare 0.1 N standard solution of C,H204.2H;O in 50 ml of distilled water, using the law of molar concentration above, if the atomic weight of C = 12 0=16 H=1 Q3// Write these chemical equations: 1- Reaction of hydrochloric acid aqueous solution & sodium hydroxide aqueous solution 2- Reaction of sodium hydroxide and water 3- The net ionic reaction of (reaction 1) Assistant Professor/ Dr. Nidhal. Yousif. Mohammed

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Question 5

I don't get it at all and i struggled. Can you help me? Can you explain to me, please?

Select the correct product for the following reaction: Br. CN NC. а) Br c) Br. Br NaCN DMSO Br. d) CN CN Br. .CN Br. b) 50:50 mixture A В C D

help needed is for this que

Please help with 28! Thank you!

Give detailed Solution..don't give Handwritten answer..give correct answer

Justify the solubility of the samples in the corresponding solvent based on their structure.   Sample                   water 5% NaHCO3 5% HCl 5%NaOH Conc. H2SO4 ether     Aniline                 n-butyl amine                 Acetic acid                 Phenol                 cyclohexanol                 2-Propanol                 Benzoic acid                 bromobenzene                 Ethylene glycol

Give one reason why benzene can act as an acid in the following reaction,

PHA 0175 Lab 4.1 Compounding Ointment Calculation Pharmaceutical Compounding Master Formula Question Calculate the amount of each ingredient required to lispense 3 oz of Zinc Oxide 20% (w/w) Ointment. • Zinc oxide 200g 150g Mineral oil White ointment 650 g Note: · Add 10% excess to the prescribed amount to compensate process loss • White Ointment: v White wax 5% V White petrolatum 95%

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Pls help ASAP ON ALL ASKED QUESTIONS PLS PLS

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2. Write equations for each of the five esterification reactions. h

U Select all the statements that are true regarding the flowchart shown below. Mixture of three components in an ether solution. OH H₂N Benzoic Acid Ethyl 4-aminobenzoate 9-Fluorenone A Add 3 M NaOH Ether Layer Aqueous Layer Add 3 M HCI B с Ether Layer Aqueous Layer D E LL F Add 6 M NaOH A will only contain dissolved 9-fluorenone. D will contain dissolved 9-fluorenone. F will contain dissolved sodium benzoate. E will contain dissolved ethyl 4-aminobenzoate salt. C will contain solid ethyl 4-aminobenzoate. Add 6 M HCI

Compound Phthalic Acid *Formula: C ₂ H 6 Ou Naphthalene Water Methanol Structure +01 with purity Pu ON Mol (g/m Procedure: 1. Prepare Hot Water for Recrystallizations 16 ( 12 All data and observation taken during lab should with a single line so the original is still legible. Add-100 mL of water to a 125-mL Erlenme Add a boiling stone to prevent bumping dur

conplete the following reaction

Table 4 Pease help me figure out what I did wrong for these calcauations for Volume of 0.100 M NaOH used, Moles of NaOH used, and Moles of acetylsalicylic acid in sample. Please show all work for thumbs up. Record in significant figures. Trail 2 help on finding the mass of aspirin. Thank you Table 4. Calculations for Aspirin Titration Titration of aspirin sample with NaOH C Table view List view Trial 1 Trial 2 Mass of empty flask (g) 106.3138 121.7022 Mass of flask and aspirin (g) 107.0440 122.4362 Mass of aspirin (g) 0.7302 0.734 Initial buret reading for NaOH (mL) 46.85 49.13 Final buret reading for NaOH(mL) 9.67 12.31 Volume of 0.100 M NaOH used 56.52 61.44 (mL) 37.18 36.82 Moles of NaOH used (mol) Moles of acetylsalicylic acid in 37.18 sample (mol) 36.82

13) 0.0972 g of CO, was dissolved in 100 g of water. Expressed in parts per million (ppm), this concentration is closest to 1) 0.972 ppm 2) 9.72 ppm 3) 97.2 ppm 4) 972 ppm 14) What is the empirical formula of a compound with the molecular formula C,H,0,? 1) CH.O. 2) CH,0 3) C,H.O. 4) C.H.O. 15) Which metal will react with acids? 1) Ag 2) Mg 3) Cu 4) Au 16) Sulfur will react with pure metal to form a 1) sulfate 2) sulfide 3) sulfites d) sulfuric acid

04// (A) Calculate the ratio of sodium benzoate to benzoic acid so that the pH of the solution =4.7 ? If you know that pka = 4.1.

Read the problem and answer the following questions. Reactions are attached in the picture Yuno wants to assess the quality of water in the Clover Kingdom and the Heart Kingdom. In order to do this, he took a 200.0 ml sample (T= 20oC)  from the two areas and titrated them with sodium thiosulfate. The water from the Clover Kingdom used up 7.15 ml of the titrant while 7.65 ml where used on the Heart Kingdom’s water.  Prior to this, 0.1000g of potassium iodate (FM: 214.01 g/mol; 99.97% purity) was weighed and subsequently dissolved in 150.0 ml of distilled water. He took 20.00 ml aliquot of this solution and added 20.00 ml of distilled water. He then treated the solution with potassium iodide and sulfuric acid. Finally, Yuno titrated the solution with 13.7 ml sodium thiosulfate titrant. Determine the concentration of the titrant in M. Calculate the dissolved oxygen (DO) content of the two water samples in ppm O2.