Compound X was developed on a TLC plate using a given eluent. The compound had a Rf value of 0.93 and the solvent front is 10.1 cm from the origin. Using this information, calculate the distance in cm that compound X traveled from the origin. Report your answer to one decimal place. cm
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- As solvent polarity increases, the Retention Factor (Rf) of compounds on the TLC plate increases. Group of answer choices True FalseA student spots an unknown sample on a TLC plate and develops it in dichloromethane solvent. Only one spot, for which the Rf value is 0.95, is observed. Does this indicate that the unknown material is a pure compound? What can be done to verify the purity of the sample?A student spots an unknown sample on a TLC plate and develops it in pentane solvent. Only one spot, for which the Rf value is 0.05, is observed. Is the un-known material a pure compound? What can be done to verify the purity of the sample?
- True or False: Rf values can be used to identify pure compounds, provided that the analysis of the unknown is run simultaneously with the known compound in the same TLC plate.If you run a compound on 4 different TLC plates using the following four different solvent systems which solvent system would give the largest Rf value for the compound?In what order would the following compounds be eluted on a silica gel TLC plate if they are spotted on the same plate and developed in a solvent mixture of 10:1 hexanes:ethyl acetate A. 1 has the highest Rf value, then 2 then 4 then 3 b. 4 has the highest Rf value, then 1 then 3 then 2 c. 3 has the highest Rf value, then 2 then 1 then 4 d. 2 has the highest Rf value, then 3 then 1 then 4
- If a TLC was run in a solvent system that caused all the spots to show up at the baseline, how could the system be adjusted so that Rf values could be determined?It is acceptable to draw the TLC spotting line with a pen as long as it is marked very lightly. True FalseCalculate the RF value for a spot in a TLC experiment if the solvent move 13.5 cm and the spot move 9.1 cm from the origin
- Two compounds A and B from GC on two open tubular columns contains a XY-1 (100% methyl) and a XY-2 (50% methyl, 50% phenyl), with the same diameter, thickness and length under the same experimental conditions. The retention times and peak widths are show in the Table 1.Hint: phenyl groups interact more strongly with polar groups than methyl groups. Which compound is more polar? Explain your answerCalculate the Rf value for a spot in a TLC experiment if the solvent moved 14.9 cm and the spot moved 9.5 cm from the origin.I need to get the rf valuse from a made up value and draw a tlc plate of 30% ethyl actate and 70% peterloume ether