An Analyst Receives a Sample That Contains MDMA, a Basic

question 23

Multiple Choice

An analyst receives a sample that contains MDMA, a basic drug with a pKa of 9.9. The analyst dissolves the powder in a buffer solution with a pH of 12. After filtering, they pour the aqueous buffer solution into a separatory funnel. They add chloroform, close and shake. Two layers form. Where will the MDMA be?

• A) In the aqueous layer
• B) In the chloroform layer
• C) equally divided between the two layers
• D) it will precipitate out as a solid
• E) none of the above

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