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Why should deionized water to be used throughout the analysis?
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- This is the most common industrial process for preparing large-scale production of nanoparticles wherein a liquid or gas is fed into a furnace and the nanoparticles are recovered by air classification. a. sol-gel method b. sputtering c. pyrolysis d. laser ablationWhat are some advantages of the membrane filter technique in the analysis of a water sample? Some disadvantages?Are these systems moderated, explain. A. An aqueous solution of plutonium nitrate B. A tray of uranium trioxide (UO3) powder, containing 1% moisture.
- Which of these could not be used in an extraction with water? Explain why you chose these solutions:Acetone, Diethylether, dichloromethane, ethyl aceate, chloroform, ethanol, and hexaneWhich among these is the most important piece of data in a gravimetric analysis? Mass of analyte Mass of weighing form Mass of crucible Mass of precipitating agentThin layer chromatography : When placed on a plate, the silica gel has a polar surface. Explain why. What intermolecular forces can form between the silica and the reference molecules? Name them.
- Briefly explain the effect of disulfiram.3. What is particulate gravimetry? When do we use this technique? 4. What are the conditions for a successful gravimetric analysis. 5. Define nucleation. What conditions are important for this stage.Guide Questions[1] What type of precipitate is BaSO4?[2] Why is filter paper preferred over a sintered glass filter?[3] What made an ashless filter paper ashless?[4] Why is a porcelain crucible used in this procedure?[5] Why do we need to precipitate from a hot solution?[6] Why is the precipitating agent added all at once?[7] What is the purpose of adding 6M HCl in the sample solution?[8] Why do we need to test the washings with AgNO3?[9] What is ignition?[10] What is the product after the precipitate was ignited?[11] What are the advantages of performing ignition?[12] Cite the sources of errors for this experiment and how to circumvent these problems.
- Which statement about the determination of the percentage purity of benzoic acid is correct? * A- Only sodium hydroxide solution can be used as the titrant in the volumetric analysis of benzoic acid. B- Analysing a benzoic acid sample that still contains some hydrochloric acid may yield an analyte percentage that is less than expected. C- Analysing a wet benzoic acid sample may yield an analyte percentage that is more than expected. D- All these statements are correct. E- None of these statements are correct.Complete the flow diagram below for Group A analysis. (Submit answers on Canvas assignment) For each step, indicate the chemical form of each Group A cation that is present at the given step (for example Ag", AgCI, Ag(NH3)2, etc.). Also indicate colors of solutions and precipitates where known. snt = supernatant ppt precipitate A = heat debulos of babba i (pa) asd rumo snt 1 M KI ppt water, A deaW (b) de of bas noleg gniliod a one! (a) Ag+, Pb2+, Groups B, C, D bob ppt 6 M HCl 6 M NH3 snt to no 6 M HNO3 To vide slide note bloo ofDescribe chromatography analysis, the two essential phases used in paper chromatography and provide an example.
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