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

Author Question: Why is it not a good idea to use a large excess of activated carbon to remove colored ... (Read 78 times)

theo

  • Hero Member
  • *****
  • Posts: 698
on: Aug 23, 2018
Why is it not a good idea to use a large excess of activated carbon to remove colored impurities?

Question 2

One explanation for the fact that the color from the brown sugar solution has diminished or disappeared is that all of the material (including the sugar) is adsorbed onto the activated carbon. With the equipment available in the lab, how could you determine if this did or did not happen?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

abro1885

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Aug 23, 2018
Answer to Question 1

Some of the desired product will be adsorbed onto the activated carbon, thereby decreasing the overall amount of material recovered from the recrystallization.

Answer to Question 2

The easiest thing to do would be to first filter the solution, removing the charcoal, and then boil off the water and see if anything is left. Other reasonable answers are also fine. For example, some students have suggested that they would isolate the charcoal and weigh it to see if its original weight had increased by the amount of brown sugar used.


theo

  • Hero Member
  • *****
  • Posts: 698
Reply #2 on: Aug 23, 2018
TY


abro1885

  • Sr. Member
  • ****
  • Posts: 337
Reply #3 on: Aug 23, 2018
You're welcome


« previous next »
 

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

The rotifer, Brachionus calyciflorus, is a large predator that consumes the smaller algae, Chlorella The rotifer, Brachionus calyciflorus, is a large predator that consumes the smaller algae, Chlorella
The carbon cycle. Numbers are storage as 1015 g or fluxes as 1015 g per year (data from Schlesinger The carbon cycle. Numbers are storage as 1015 g or fluxes as 1015 g per year (data from Schlesinger
Pekingese's large eyes Pekingese's large eyes
Large Skipper Large Skipper
Soil and the Carbon Cycle Soil and the Carbon Cycle
An Example of Carbon Capture Technology An Example of Carbon Capture Technology
Video: Component of feedback systems & Communication and regulation of body systems

For a complete list of videos, visit our video library