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22. Write an equation that accounts for the solability of benzoic acid in aqueous base, 23....
22. Write an equation that accounts for the solubility of benzoic acid in aqueous base. 23. What would you expect to happen if a solution of sodium benzoate were acidified? Write an equation. 24. What would have been the effect of omitting the sulfuric acid from methyl benzoate preparation by reacting benzoic acid with methanol? 25. Criticize the following techniques: (a) Heating a mixture that contains n-hexane using an open flame. (b) For a reaction, heating a mixture that contains...
24. What would have been the effect of omitting the sulfuric acid from methyl benzoate preparation by reacting benzoic acid with methanol? 25. Criticize the following techniques: (a) Heating a mixture that contains n-hexane using an open flame. (b) For a reaction, heating a mixture that contains a large amount of toluene using hot water bath. (c) Running s reaction with tert-butyl alcohol that is cooled to 0°C in an ice bath. (d) A 100-ml graduated cylinder is used to...
16. Would you expect 2-octanone to be soluble in water? Would you expect butanal to be soluble in water? Would either of them be more soluble in hexane than in water? Explain. 25. Criticize the following techniques: isten (a) Heating a mixture that contains n-hexane using an open flame. (b) For a reaction, heating a mixture that contains a large amount of toluene using hot water bath. (c) Running s reaction with tert-butyl alcohol that is cooled to 0°C in...
Use of Extraction to Isolate a Neutral Compound from a Mixture Containing an Acid or Base Impurity. Part 4D Hi guys I had a question about this lab. I am not sure how to create a flow chart for it as well as what chemical equations it needs. please let me know if you need more information. layer. In the Optional Exercise, the sample contains a neutrum base impurity; however, a detailed procedure is not given. If you are assigned...
What are the desirable characteristics of a solvent to be used in the recrystallisation of a solid product? (Hint: what is the underlying purpose of doing recrystallisation, aside from making the product look attractive?) EXPERIMENT5 PREPARATION OF BENZOIC ACID Oxidation of a Primary Alcohol In this experiment, a primary alcohol (benzyl alcohol) is oxidised to a carboxylic acid (benzoic acid) by a strong oxidising agent (potassium permanganate) Because the synthesis reaction is carried out in basic conditions, the carboxylic acid...
The following primary standards can be used for the standardization of bases except. a. Benzoic acid b. Oxalic acid c. CaCO3 d. KHP A solution that may contain NaOH, Na 2CO3, and NaHCO3, alone or in compatible combination was titrated with 0.1200 M HCl. The volume of the acid required to reach the phenolphthalein endpoint was 25.67 mL while 38.13 mL to reach the methyl red endpoint. What are the components of the mixture? a. Na2CO3 only b. NaOH only...
CHROMIC ACID OXIDATION Pre Lab Questions the amounts of materials that will be used from the experimental section above) H2SO4 + Na2Cr207 2H20- H2O, A Molecular Weight Theoretical yield amount moles on (if applicable) Equivalents 2. Look up the melting point for p-nitrobenzoic acid and record the reference. 3. What color change is expected to be observed in the reaction? Explain why. CHROMIC ACID OXIDATION Experimental Procedure: Part I: Synthesis of p-nitrobenzoic Acid 1. Under the hood, add 0.400 g...
1 - Provide a balanced equation for this reaction 2 - Provide a mechanism for the transformation of cyclohexanol into cyclohexanone 3 - Provide a flow chart for the workup procedure for isolating cyclohexane from all the by-products, making sure to note in which layer you expect to find your product in each extraction. 4 - Provide the theoretical yield of cyclohexane in this experiment. PROCEDURE OXIDATION OF CYCLOHEXANOL TO CYCLOHEXANONE Set up a water bath as the heat source...
need hep with these two questions! here is the information for the lab K2Cr₂O + H₂ C₂04 2H2O sklor (C204) [H202₂/2 H2otca 2k12 2 cr=x2 (+8ly kzcrgo7+ I 142 C204-21420 2 k cellow). (1) 2 - 2 H2O toc -=S7 30-4521 2. Calculate the theoretical yield of K[Cr(C,0.),(H,0), 2H,0. 3. What is the theoretical percentage by weight of Cr in K[Cr(C,0.),(H,0), 2H,0? using the spectrophotometer at your desk, at the wavelength of maximum absorbance of the blue-green chromium ion, measure...
1) Write a Reaction equation using 4- aminobenzenesulfulfonic acid (aniline derivative) and 8-anilino-1-naphthalenesulfonic acid (coupling agent). Write the mechanism. SYNTHESIS OF AZO DYES INTRODUCTION Humans' love of color dates back almost to prehistoric times, yet it is not actually until the modern era that the full range of the rainbow has been accessible to the majority of people irn their clothes and other textiles. Ancient or medieval times have often been described as being quite splendid with their "tyrian purple"...