Answered Essay: In part III for this experiment, you are asked to calculate the Rf values for various materials.

In part III for this experiment, you are asked to calculate the R_f values for various materials. What statement below defines what an R_f value is?

Select one:

The distance the component travelled from the origin divided by the total height the mobile phase/eluent travelled as measured from the origin.

The distance the mobile phase/eluent travelled minus the distance the component travelled as measured from the origin.

The distance the mobile phase/eluent travelled plus the distance the component travelled as measured from the origin.

The distance the component travelled from the origin minus the total height the mobile phase/eluent travelled as measured from the origin.

The distance the component travelled from the origin plus the total height the mobile phase/eluent travelled as measured from the origin.

The distance the mobile phase/eluent travelled divided by the distance the component travelled as measured from the origin.

Expert Answer

Answer

What statement below defines what an R_f value is?

The distance the component travelled from the origin divided by the total height the mobile phase/eluent travelled as measured from the origin.

Retension factor = (distance travelled by the component/distance travelled by the reference compound)

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