The following TLC plate (coated with silica gel) was obtained by separating five different samples using hexane as the mobile phase. D C 8,1 cm 6,5 cm B 4,4 cm A 2,3 cm Solvent front = 10 cm 9,3 cm J 7,8 cm 5,2 cm I H G 3,4 cm 2,3 cm F

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Chapter1: Chemical Foundations
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The following TLC plate (coated with silica gel) was obtained by separating five different
samples using hexane as the mobile phase.
6.
D
с
8,1 cm
6,5 cm
B 4,4 cm
A 2,3 cm
1
2
3
4
•
5
Solvent front = 10 cm
9,3 cm J
7,8 cm
5,2 cm
3,4 cm
2,3 cm
1,5 cm
I
H
G
F
E
2. Which of the samples is not a mixture, explain your answer.
(2)
3.
Compound A in sample 1 and a compound F in sample 3 travelled the same
distance. What does this tell us about the compounds?
(3)
Explain how we can identify the names of the compounds have been separated by
TLC
(3)
Transcribed Image Text:The following TLC plate (coated with silica gel) was obtained by separating five different samples using hexane as the mobile phase. 6. D с 8,1 cm 6,5 cm B 4,4 cm A 2,3 cm 1 2 3 4 • 5 Solvent front = 10 cm 9,3 cm J 7,8 cm 5,2 cm 3,4 cm 2,3 cm 1,5 cm I H G F E 2. Which of the samples is not a mixture, explain your answer. (2) 3. Compound A in sample 1 and a compound F in sample 3 travelled the same distance. What does this tell us about the compounds? (3) Explain how we can identify the names of the compounds have been separated by TLC (3)
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