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Other Analytical Methods Practice Test
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Q1
Extraction is the process of removing compounds from a solution by taking advantage of varying solubilities. The process of extraction for a mixture of diethylamine, phenol, acetic acid, and ammonia involves three steps.
1. Add a strong acid and shake the solution. Let the aqueous layer drain off.
2. Add a weak base and shake the solution. Let the aqueous layer drain off.
3. Add a strong base and shake the solution. Let the aqueous layer drain off.
Which of the following compounds would be the last to enter the aqueous phase using this technique?
Extraction is the process of removing compounds from a solution by taking advantage of varying solubilities. The process of extraction for a mixture of diethylamine, phenol, acetic acid, and ammonia involves three steps.
1. Add a strong acid and shake the solution. Let the aqueous layer drain off.
2. Add a weak base and shake the solution. Let the aqueous layer drain off.
3. Add a strong base and shake the solution. Let the aqueous layer drain off.
Which of the following compounds would be the last to enter the aqueous phase using this technique?