14.Calculate the Rf value when one colour had moved by 50mm and the solvent had moved by 100mm. Calculate to 1 decimal place.
Question
14.Calculate the Rf value when one colour had moved by 50mm and the solvent had moved by 100mm. Calculate to 1 decimal place.
Solution
The Rf value (Retention Factor) in chromatography can be calculated using the formula:
Rf = Distance travelled by the substance / Distance travelled by the solvent
Given in the question, the substance (colour) has moved 50mm and the solvent has moved 100mm.
So, substituting these values into the formula:
Rf = 50mm / 100mm = 0.5
Therefore, the Rf value to 1 decimal place is 0.5.
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