Define crude yield for dichloromethane extraction

Reference no: EM13194077

Assume the caffeine solution is 15 mg of caffeine per mL. A student used 5 mL of caffeine solution in both part A and part B. Crude yields was 68 mg from the dichloromethane extract and 47mg from the MTBE extract. After combining the crude samples and recrystallizing, 72mg of pure caffeine was obtained. Calculate:

a. Crude yield for dichloromethane extraction

b. Crude yield for MTBE extraction

c. Overall yield after recrystallization.

Reference no: EM13194077

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