Question

Lastly, Snape thinks we should try one more calculation. What is the retention factor if the distance traveled by the solvent front is 2.0 cm, and the distance the ion is from the solvent front is 0.20 cm? Hint: Be careful with how Snape worded this question.

Answer 1

Answer:

0.1 is the retention factor.

Explanation:

Distance covered by solvent ,$d_s= 2.0 cm$

Distance covered by solute or ion,$d = 0.20 cm$

Retention factor$(R_f)$ is defined as ratio of distance traveled by solute to the distance traveled by solvent.

$R_f=\frac{d}{d_s}$

$R_f=\frac{0.20 cm}{2.0 cm}=0.1$

0.1 is the retention factor.