A spot of black ink was placed on a strip of filter paper. The chromatogram was developed using an appropriate solvent. The result is shown below. Which of the following spot is the least soluble in water? E OH E
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- A spot of crude plant extract was placed on a glass plate coated with C18 silica gel. The chromatogram was developed using an appropriate solvent. The result is shown below. Which of the following spot is the most soluble in water? Choices: Spot C Spot M Spot E Spot HA spot of black ink was placed on a strip of fiter paper. The chromatogram was developed using an appropriate solvent. The result is shown below. Which of the following spot is the least soluble in water? OH O E O MCan paper chromatography be used to separate and identify very volatile substances? Why? Please explain comprehensively.
- How can you use ion exchange Chromatography to de-ionize water? Please shortly write at your own words. (4-5 lines maximum ).How can you use ion exchange Chromatography to de-ionize water? Please shortly answer at your own words. Answer should be to the point (specific 4-5 lines).A student developed a new dye called Dye C. It was analyzed against other dyes using paper chromatography. A solution of 1:1 ethyl acetate:hexane was used as the eluent. The resulting chromatogram is shown below. What other dye/s are present in dye C? Which dye contains the least number of pigments?
- Barium sulfate from a 1.300-g sample was contaminated with 9.4 mg of Fe2(SO4)3 and weighed a total of 314.0 mg. Calculate a) the apparent percent BaSO4 (Apparent – the value of analyte concentration obtained when the interference is not considered) b) the true percent BaSO4Qno1: why there is a need of chromatography and chromatography thecniqs. B) when and where we should use normal and reverse phase chromatographyA student performed chromatography on a mixture of benzoic acid (C6H5CO₂H), acetophenone (C6H5C(O)CH3) and styrene (C6H5CHCH₂). She used alumina (Al₂O3) as the stationary phase and a 9 : 1 mixture of hexane : ethyl ethanoate as the mobile phase. Rank the order in which the compounds moved, from fastest to slowest. benzoic acid acetophenone styrene
- A spot of crude plant extract was placed on a glass plate coated with C18 silica gel. The chromatogram was developed using an appropriate solvent. The result is shown below. Which of the following spot is the most soluble in water?1. In thin layer chromatography (TLC), explain how the pigments separate on a piece of paper. 2. If the spots are colorless on a TLC plate, how can you make it visible? Enumerate 2 ways and discuss each.Can paper chromatography be used to separate and identify very volatile substances? How do I prove this.