1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mademuasel [1]
3 years ago
8

Caffeine is one of many naturally occurring chemicals in tea plants that plays two important roles: protecting the plant from pr

edators while making its flowers appealing to pollinators such as bees. It is known to be soluble in both pure water and pure dichloromethane, but exhibits a preference towards one solvent over the other. Describe the procedural steps to perform a liquid-liquid extraction and isolation of solid caffeine from a sample of one commercial tea bag.
Chemistry
1 answer:
AnnyKZ [126]3 years ago
6 0

Caffeine is more soluble in dichloromethane and the both are separated by evaporating the solvent.

Caffeine is an organic plant material which is more soluble in non-polar solvents than in polar solvents. As such, caffeine is more soluble in dichloromethane than in pure water.

In order to carry out a liquid-liquid exaction of dichloromethane from a commercial teabag, the dichloromethane is mixed with water. The caffeine is found to be more soluble in the organic dichloromethane layer than in water.

The two solvents can now be separated using a separating funnel and the solution is evaporated to obtain the caffeine.

Learn more: brainly.com/question/967776

You might be interested in
So, I have missed school around three days out of the week. and in science, we are going over the periodic table, I suppose.. an
Sonbull [250]
I am unable to see the attachment pm me and i can help you

3 0
3 years ago
If the theoretical yield of a reaction is 0.110 g and the actual yield is 0.104 g , what is the percent yield?
Westkost [7]
Theoretical Yield is an Ideal yield with 100 % conversion of reactant to product. It is in fact a paper work.

While,

Actual Yield is the yield which is obtained experimentally. It is always less than theoretical yield because it is not possible to have 100% conversion of reactants into products. Even some amount of product is lost while handling it during the process.

Percentage Yield is Calculated as,

                    %age Yield  =  Actual Yield / Theoretical Yield × 100

Data Given:
                   Actual Yield  =  0.104 g

                   Theoretical Yield  =  0.110 g

Putting Values,

                    %age Yield  =  0.104 g / 0.110 g × 100

                    %age Yield  =  94.54 %
3 0
3 years ago
A rectangular solid has the following measurements 6 cm, 10 cm, and 5 cm. what is the volume of the solid?
AysviL [449]
300cm cubed ( have a great night! )
7 0
3 years ago
Identify this symbol.<br> Cl-
g100num [7]
Symbols on the periodic table represent an element. 

Cl is also known as chlorine. 
8 0
3 years ago
On the fahrenheit scale, at what temperature does water boil? a. 451°f b. 264°f c. 212°f d. 100°f
taurus [48]

The temperature that water boils on the fahrenheit scale is c. 212°f.

<h3>What is Temperature conversation?</h3>

Temperature conversation is a way of converting a temperature from a unit to another using conversation scale.

Therefore, on fahrenheit scale water boils at  212°f which is equivalent to 100°C on the Celcius scale.

Learn more about Temperature conversation at;brainly.com/question/23419049

#SPJ4

5 0
2 years ago
Other questions:
  • Hey there! so I have this question in chemistry where they have shown a reaction with Ammonia acid and HCL, so the question to e
    8·2 answers
  • What is the term for the pattern of spiral impressions inside a handgun?
    14·1 answer
  • PLEASE ANSWERRRRRRRRRRRRR
    9·2 answers
  • What is the chemical formula for toothpaste?
    6·2 answers
  • UUUUUULUHU Urgull (ULLO
    13·1 answer
  • The test tube that contained the calcium metal was probably the most difficult of the test tubes to clean. Why was aqueous HCl u
    13·1 answer
  • Write the molecular equation and net ionic equation for the reaction of hydroiodic acid and potassium hydroxide. Include phases
    8·1 answer
  • A) Calculate the molar mass of ethanol, C2H5OH and water, H20.<br> C2H5OH =<br> H2O =<br> I
    9·1 answer
  • A body-centered cubic unit cell has an edge length of 588 pm. What is the radius of the atoms composing the unit cell?
    15·1 answer
  • Which model of the solar system is shown here?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!