You are extracting the somewhat water soluble caffeineout of a strongly brewed and cooled tea with ethyl acetate. Youextract 50 mL of brewed tea with 25 mL of ethyl acetate and don'tget enough caffeine. You need to repeat the procedure from thebeginning and want to increase the percent of the caffeineextracted. Which of the following changes will do that? Select allthat apply.
Add more water to dilute your brewed tea beforeextracting with 25 mL of ethyl acetate.
Don't cool the brewed tea and keep it close to boilingwhen doing the extraction with ethyl acetate.
Do exactly the same procedure, but repeat the extractionwith a second 25 mL portion of ethyl acetate.
Use twice the amount of brewed tea and twice the amountof ethyl acetate.
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.
Use the same amount of brewed tea but double the amountof ethyl acetate.
You are extracting the somewhat water soluble caffeine out of a strongly brewed and cooled tea with ethyl acetate. You e
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