a compound is spotted at 1.0 cm from the bottom of the plate and rises 4.3 cm. if the solvent rises 7.8 cm from the bottom of the plate, what is the rf of the compound? show calculations.

Respuesta :

The Rf of the compound=0.48

Why is the RF value necessary?

Rf values are the experiment's most fundamental precondition in chromatography. These figures show which phase the analyte (solute) prefers—stationary or mobile. Rf values are used, among other things, to establish polarity, relative masses, and relative solubilities for stationary and mobile phases.

Retention factors are useful for comparing the outcomes of different chromatograms. If the chromatogram is carried out under the same conditions, the retention factor for a certain chemical should remain constant (same mobile and stationary phases). This makes it possible to compare unknown materials to recognized ones.

Rf value =Distance travelled by solute/distance travelled by the solvent

Distance travelled by solute =3.3

distance travelled by the solvent = 6.8

[tex]Rf value= \frac{3.3}{6.8}[/tex]

[tex]Rf value = 0.48[/tex]

The Rf of the compound=0.48

Learn more about Retention factors here:-

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