The following data was generated by running two TLC plates with four compounds-A, B, C & D (two on each plate).Plate 1, dist. traveled by compound A = 4.0 cm, dist. traveled by compound B= 6 cm, dist. traveled by solvent = 12 cmPlate 2, dist. traveled by compound C=2.5 cm, dist. traveled by compound D= 5 cm, dist. traveled by solvent = 10 cmBased on the Rf value calculations, the identical compounds are:OC&DB &DO A&COB& C Fractional distillation of a mixture of two compounds gives the following data after the GC analysis and peak integration:Peak 1 (corresponding to compound 1), area = 70.3 sq unitsPeak 2 (corresponding to compound 2), area 28.7 sq unitsWhat was the original percentage composition of the two compounds in the mixture?O Compound 1 29.0%Compound 2 = 71.0%Compound 1=71.0%Compound 2 = 29.0%Compound 1 = 41.0%Compound 2 = 59.0%Compound 1 =61.5%Compound 2 = 38.5%

Since you have posted multiple unrelated questions, we are entitled to answer the first only.

The following data was generated by running two TLC plates with four compounds-A, B, C &D (two on each plate). Plate 1, dist. traveled by compound A = 4.0 cm, dist. traveled by compound B 6 cm, dist. traveled by solvent 12 cm Plate 2, dist. traveled by compound C = 2.5 cm, dist. traveled by compound D= 5 cm, dist. traveled by solvent = 10 cm Based on the Rf value calculations, the identical compounds are: OC&D B&D O A&C B&C

The following data was generated by running two TLC plates with four compounds-A, B, C &D (two on each plate). Plate 1, dist. traveled by compound A = 4.0 cm, dist. traveled by compound B 6 cm, dist. traveled by solvent 12 cm Plate 2, dist. traveled by compound C = 2.5 cm, dist. traveled by compound D= 5 cm, dist. traveled by solvent = 10 cm Based on the Rf value calculations, the identical compounds are: OC&D B&D O A&C B&C

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter11: Isolation Of Caffeine From Tea Le

Section: Chapter Questions

Problem 1Q

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Oral rehydration salts are stated to contain the following components: Sodium Chloride 3.5g Potassium Chloride 1.5g Sodium Citrate 2.9g Anhydrous Glucose 20.0g 8.342 g of oral rehydration salts are dissolved in 500 ml of water. 5 ml of the solution is diluted to 100 ml and then 5 ml is taken from the diluted sample and is diluted to 100 ml. The sodium content of the sample is then determined by flame photometry. The sodium salts used to prepare the mixture were: Trisodium citrate hydrate (C6H5Na3O7, 2H2O) MW 294.1 and sodium chloride (NaCl) NW 58.5. Atomic weight of Na = 23. The content of Na in the diluted sample was determined to be 0.3210 mg/100 ml. Determine the % of stated content of Na in the sample. The stated should be 104.5, how??
Oral rehydration salts are stated to contain the following components: Sodium Chloride 3.5g Potassium Chloride 1.5g Sodium Citrate 2.9g Anhydrous Glucose 20.0g 8.342 g of oral rehydration salts are dissolved in 500 ml of water. 5 ml of the solution is diluted to 100 ml and then 5 ml is taken from the diluted sample and is diluted to 100 ml. The sodium content of the sample is then determined by flame photometry. The sodium salts used to prepare the mixture were: Trisodium citrate hydrate (C6H5Na3O7, 2H2O) MW 294.1 and sodium chloride (NaCl) NW 58.5. Atomic weight of Na = 23. The content of Na in the diluted sample was determined to be 0.3210 mg/100 ml. Determine the % of stated content of Na in the sample.
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