Chemistry: Calculate the Rf value of compounds X and Y based on information (X travels 0.5.0 cm, Y travels 1.0 cm from the origin line; the solvent front is 3.0 cm). Comment on the polarity and separation of X and Y on the TLC plate.

Calculate the Rf value of compounds X and Y based

Ответ:

TrueKing184

18.04.2021

Retention factor or R_f value is defined as the ratio of distance traveled by the unknown to the distance traveled by the solvent front.

$R_f=\frac{\text{ distance by unknown}}{\text {distance by solvent}}$

Putting in the values we get:

$R_f_{X}=\frac{0.50cm}{3.0cm}=0.16$

$R_f_{Y}=\frac{1.0cm}{3.0cm}=0.33$

As the R_f value of Y is more than X , it follows that Y compound will be retained less strongly than the compound X. Thus Y is more polar than X.

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Ответ:

snikergrace

22.03.2021

Chemistry

Explanation:

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Calculate the Rf value of compounds X and Y based on information (X travels 0.5.0 cm, Y travels 1.0 cm from the origin line; the solvent front is 3.0 cm). Comment on the polarity and separation of X and Y on the TLC plate.

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