1) How could thin layer chromatography have been used to asses the purity of the

Question

1) How could thin layer chromatography have been used to asses the purity of the separated components of nitrophenol and Triphenylmethanol in a liquid-liquid extraction.
2) Which component is expected to have the highest Rf value? 1) How could thin layer chromatography have been used to asses the purity of the separated components of nitrophenol and Triphenylmethanol in a liquid-liquid extraction.
2) Which component is expected to have the highest Rf value?
2) Which component is expected to have the highest Rf value? 2) Which component is expected to have the highest Rf value?

Explanation / Answer

nitrophenol --> nonpolar, -NO2 cancel each pole

Triphenylmethanol --> slightly polar

then...

use hexanol/hexane mix, and a stationary phase such as silica gel

therefore

the Triphenylmethanol will remain attached to the stationary phase, since it is polar-polar.

Then, the nitrophenol will attach to the nonpolar solvent, which will make a higher Rf value, due to the affinity.

this way, you separate/identify both species in the TLC plate

2)

highest Rf value --> the least polar, so choose nitrophenol

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.