This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Do the results from the TLC prove that the product is pure? ... (Read 35 times)

rayancarla1

  • Hero Member
  • *****
  • Posts: 571
on: Aug 23, 2018
Do the results from the TLC prove that the product is pure? Explain.

Question 2

Why is the Opadry coating removed using ethanol instead of water?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

leahm14

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Aug 23, 2018
Answer to Question 1

No. You cannot use TLC to establish purity of a compound because there could be impurities that have the same Rf values as the compound. Impurities might also be present at different Rf's, but not visualized using standard techniques.

Answer to Question 2

The Opadry coating and sodium naproxen are both soluble in water. If water were used, some of the sodium naproxen would dissolve in the solution along with the Opadry. Separating these would be difficult. Sodium naproxen is not very soluble in ethanol and the Opadry coating is easy to remove using ethanol. Therefore, ethanol is the solvent of choice for removing the coating.


rayancarla1

  • Member
  • Posts: 571
Reply 2 on: Aug 23, 2018
YES! Correct, THANKS for helping me on my review

softEldritch

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

(a) Feeding by bear on salmon results in large allochthonous inputs of nutrients into (b) the forest (a) Feeding by bear on salmon results in large allochthonous inputs of nutrients into (b) the forest
Pure Alexia in a Patient with Multiple Sclerosis Pure Alexia in a Patient with Multiple Sclerosis
National Results of the Scholastic Assessment Test (SAT) National Results of the Scholastic Assessment Test (SAT)
The direct product of phosphate hydrolysis from PEP is the enol form of pyruvate The direct product of phosphate hydrolysis from PEP is the enol form of pyruvate
Use the product rule to find derivative Use the product rule to find derivative
To find the derivative use product rule To find the derivative use product rule
Video: Types of antimicrobial substances (interferons & complement protein)

For a complete list of videos, visit our video library