You are extracting the somewhat water soluble caffeine out of a strongly brewed and cooled tea with ethyl acetate. You e
Posted: Tue Jul 05, 2022 9:14 am
You are extracting the somewhat water soluble caffeine out of astrongly brewed and cooled tea with ethyl acetate. You extract 50mL of brewed tea with 25 mL of ethyl acetate and don't get enoughcaffeine. You need to repeat the procedure from the beginning andwant to increase the percent of the caffeine extracted. Which ofthe following changes will do that? Select all thatapply.
A) Add more water to dilute your brewed tea beforeextracting with 25 mL of ethyl acetate.
B) Don't cool the brewed tea and keep it close toboiling when doing the extraction with ethyl acetate.
C) Do exactly the same procedure, but repeat theextraction with a second 25 mL portion of ethylacetate.
D) Use twice the amount of brewed tea and twice theamount of ethyl acetate.
E) Brew the tea with less water (25 mL) using the sameamount of tea leaves, and then extract with the brewed tea with thesame 25 mL of ethyl acetate.
F) Use the same amount of brewed tea but double theamount of ethyl acetate.
A) Add more water to dilute your brewed tea beforeextracting with 25 mL of ethyl acetate.
B) Don't cool the brewed tea and keep it close toboiling when doing the extraction with ethyl acetate.
C) Do exactly the same procedure, but repeat theextraction with a second 25 mL portion of ethylacetate.
D) Use twice the amount of brewed tea and twice theamount of ethyl acetate.
E) Brew the tea with less water (25 mL) using the sameamount of tea leaves, and then extract with the brewed tea with thesame 25 mL of ethyl acetate.
F) Use the same amount of brewed tea but double theamount of ethyl acetate.