Question

1. 5 grams of caffeine were extracted from ground tea into 100 mL of water. Calculate...

1. 5 grams of caffeine were extracted from ground tea into 100 mL of water. Calculate the recovery of caffeine using ethyl ether as the extracting solvent and the distribution coefficient is 10.

a) Calculate the caffeine in ethyl ether if a total of 150 mL of ethyl ether are used in 1 extraction.

b) Calculate the caffeine in ethyl ether if a total of 150 mL of ethyl ether are used in 3 extractions (50 mL each extraction).

*Please show work! I really need to understand this, thank you!

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
You want to extract a solute from 100 mL of water using only 300 mL of...
You want to extract a solute from 100 mL of water using only 300 mL of ether. The partition coefficient between ether and water is 3.0. Calculate q, the fraction of solute that would remain in the water under each of the following extraction conditions: (a) A single extraction with 300 mL of ether.(b) Three extractions with 100 mL of ether.(c) Six extractions with 50 mL of ether.
A solute with a partition coefficient of 7.4 is extracted from 25 mL of water into...
A solute with a partition coefficient of 7.4 is extracted from 25 mL of water into toluene. a) What volume of toluene is required to recover 99% of the solute in a single extraction? b) What total volume of toluene is required to recover 99% of the solute in four extractions?
Using the formula below: K= compound per mL organic solvent /compound per mL of water (a)...
Using the formula below: K= compound per mL organic solvent /compound per mL of water (a) A compound distributes between benzene (solvent 1) and water (solvent 2) with a distribution coefficient, K = 2.7. If 1.0g of the compound were dissolved in 100mL of water, what weight of compound could be extracted by THREE sequential 10-mL portions of benzene? b) one 30 mL portion of Benzene used c) If the distribution constant, K, for the problem in part (a) were...
1) Describe an example of each of the following that may be found of your kitchen:...
1) Describe an example of each of the following that may be found of your kitchen: Explain how your choice falls into this category, and if there is a chemical name or symbol for it, provide that as well. Provide a photo of your example with your ID card in it. a) a compound b) a heterogeneous mixture c) an element (symbol) Moving to the Caves… Lechuguilla Caves specifically. Check out this picture of crystals of gypsum left behind in...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT