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Q: If 50% water : 50% methanol solvent system was used in the chromatographic analysis, the technique…
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Q: why is acetic acid used in the mobile phase in HPLC?
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A: ANSWER IS :
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Q: So we lately had a paper chromatography activity and we used a plant with only one pigment (which is…
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Q: what is the advantage of TLC as compared to the column chromatography ?
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Q: The following questions relate to the column chromatography experiment.a. Why does the fluorene…
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Q: What type of materials can be used as the stationary phase for column chromatography? O Inorganic…
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Q: Comments on choice of a paper and solvent are main back bones of paper chromatography.
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- 5. + 6.A 1.59 g sample containing KI was analyzed gravimetrically and 0.0538g of Barium Iodate was recovered... express the results of this analysis as percent posassium iodide.6. In Part A, suppose that after delivery several drops of the water cling to the inner wall of the pipet (because the pipet wall is dirty). How, in terms of calculations, will this technique error affect the calculated density? Will it increase or decrease and why?
- a)Graph the distance migrated versus concentration for xylene cyanol series on the semi log graph. b)How would you describe this relationship between the concentration of the dye and rate of diffusion. c)When compared to the diffusion of the same concentration of pure c)xylene chabolista does the presence of a second source in the mixture affect the diffusion rate of xylene cyanol?Why is it important that the pressure is very low in EI-MS but much higher in CI-MS?Name the active depigmentation ingredients in the following Facial Lotion, (PEG 8-propylene glycol; 2-ethyl-hexyl salicylate; thioglycine;Hydroquinone;NaHSO,/Na,SO;; Al-citrate; Ethanol, Water) 1. 2 3 .. *....
- Window Help of Liquids Solids.pdf 10 Date Section Name Post-Laboratory Questions (Use the spaces provided for the answers and additional paper if necessary.) 1. The density of ice at 0°C is 0.9168 g mL, and that of liquid water at 0°C is 0.9999 g mL-. (1) What are the volumes of 1.000 g of ice and of 1.000 g of water at 0°C? SEP étv 21 DII DD F10 F9 F7 F8 F5 F6 F3 F4 0/ &Question 3 Describe the differences between steady-state diffusion and nonsteady-state diffusionWhy is it better to use 10.0mL or greater of a liquid in measuring its density?
- (vi) Complete the following statementComponent A spends ___ times as much time on the stationary phase as in the mobile phase;component B spends ___ times as much time on the stationary phase as in the mobile phase.Thank you! One of this was incorrect according to the platform I was uploading my homework inIn paper chromatography, the stationary phase is made of ---------- and the mobile phae is made of ----------- a) liquid, liquid b) liquid, gas c) solid, gas d) solid, liquid