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Zaid1993:
A mixture placed in an Erlenmeyer flask comprises of 6ml of silica gel and 40ml of solvent containing, in solution, 100mg of a non-volatile compound. After stirring, the mixture was left to stand before a 10ml aliquot of the solution was extracted and evaporated to dryness. The residue weighed 12mg. Calculate the adsorption coefficient K=C(stationary phase)/C (mobile phase) of the compound in this experiment. need helps
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