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Q: what is the name of the compound? Identify the configuration of the double bond.
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Do (6) (a)
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- three dimensional structure for 2-Hydroxypropanoic acid2 Does anyone know how to dissolve the alginate in the microencapsulates? I am trying to encapsulate probiotics to add them to coffee in the form of microencapsulates, the problem is that the alginate does not dissolve and remains a very gelatinous consistency, how can I dissolve them or in what proportion should I add it. Besides EDTA and glycerol what else would work as a chelating agent since I also want to lyophilize them.Is it possible to prepare a 17% dye solution from a 4% stock dye solution? Explain your answer.
- Provide a brief justification for the following procedures in drug production. 1.Storing magnesium citrate in the refrigerator. 2. Filtering solution while its hot. 3. Cooled purified water in preparing calcium hydroxide solution. 4. Sterilization of materials for syrup preparation. 5. Addition of potassium iodide in Lugol’s solution.3c. Give the structures of vinyl chloride and ethyl methacrylate and indicate precisely the repeat units for PVC and PEME.Can azeotropes be separated using simple distillation? Why or why not?
- The procedure for the synthesis of menthone indicates that you should use 10 cm³ of 6M sulphuric acid. Suppose that only sulphuric acid with concentration 1.5M is available in the laboratory. What volume in cubic centimetres of this solution do you need to add to the reaction mixture to replace the solution originally specified?2. Describe and explain the effect(s) on your result for the following possible experimental errors. In each case, specify the component(s) whose percentage(s) would be too high or too low and explain your rationale why these would be changed. (a) After adding DCM to the counterfeit pharmaceutical at the beginning, you didn’t stir or shake the mixture before filtering. (b) Washing the sucrose recovered during the first vacuum filtration with water rather than DCM. (c) During the NaHCO3 extraction, you failed to mix the organic and aqueous layers thoroughly. (d) You mistakenly extracted the DCM solution with 5% HCl rather than 5% NaHCO3. (e) You neutralised the NaHCO3 solution to pH7 rather than pH2.1.What is the significance when KD is either a small or large value? 2. Methyl alcohol and ethyl alcohol are poor extraction solvents. Why?3. What is the major disadvantage of using ether as an extracting solvent?