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4 December, 17:20

If the solvent front is 68 mm and the ring front of an unknown is 48mm from the original spot, what is the rf value?

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  1. 4 December, 17:34
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    Given:

    Distance of solvent front = 68 mm

    Distance of unknown = 48 mm

    To determine:

    The rf value

    Explanation:

    The retention factor or the rf value is given by the ratio of distance traveled by the unknown to the distance traveled by the solvent front

    RF = distance by unknown/distance by solvent

    RF = 48/68 = 0.706

    Ans: the RF value is 0.706
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