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shows a paper chromatogram of five different inks.
5.1) Explain how paper chromatography separates substances. [3 marks]
5.2) Analyse the chromatogram. Describe and explain the result for black ink. [4 marks]
to calculate the R
value of the blue ink. [3 marks]
Rf value = ______________________
(Total for Question 5 = 10 marks)