Question

Question 5 (0.5 points) A certain compound is spotted on the starting line of a small paper chromatogram and that same compound is spotted again on a much larger paper chromatogram. Both papers are developed using the same solvent and are pulled out when the solvent is 2 cm from the top. Which statement is true regarding the R of the spot after development? C) The spot on the larger paper should have a higher Rf because the spot travels farther. The spots on both papers should have similar Re values because the spots will travel the same distance. The spot on the smaller paper should have a higher Rf because the solvent doesn't travel as far The spots on both papers should have similar Re values because the spot travels up a consistent fraction of the paper. Question 6 (0.5 points) A student's developed paper chromatogram shows all of the spots crowded together at the very top edge of the paper, making it impossible to tell one from another. What did the Question 6(0.5 points) A student's developed paper chromatogram shows all of the spots crowded together at the very top edge of the paper, making it impossible to tell one from another. What did the student most likely forget to do? Keep the solvents under the hood. Remove the paper when the solvent has moved to within 2 cm from the top. Use a separate capillary tube for each sample. Question 7 (0.5 points Why must you mark the solvent front immediately after you remove the paper from the developing chamber? You cannot see the line after the solvent evaporates. The paper hardens and you won't be able to mark it once it's dry. The line will continue to move after you remove the paper from the developing chamber The spots will dis

Answer 1

Hi, these questions are testing our basic knowledge and requires definitions - no need to any extra explanation here, just answer tells everything.

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