My starting mass: 0.514 gCalculate the crude percent yield of the reaction. Or Calculate the percent recovery for your recrystallization. Starting mass of trans-cinnamic acidMass of impure 2,3-dibromo-3-phenylpropanoicacidMass of impure 2,3-dibromo-3-phenylpropanoicacid used for recrystallizationMass of recrystallized 2,3-dibromo-3-phenylpropanoic acid recoveredMelting point range of crude productMelting point range of recrystallized product-0.514 g1.634 g0.961 g0.615 g199.8 °C -204.3 °C203.1 °C-208.9 °C

A question based on stoichiometry. For the given reaction, the percent recovery is to be determined…

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Or Calculate the percent recovery for your recrystallization.

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter4: Recrystallization

Section: Chapter Questions

Problem 1Q

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Question

My starting mass: 0.514 g

Calculate the crude percent yield of the reaction. Or Calculate the percent recovery for your recrystallization.

Starting mass of trans-cinnamic acid
Mass of impure 2,3-dibromo-3-
phenylpropanoic
acid
Mass of impure 2,3-dibromo-3-
phenylpropanoic
acid used for recrystallization
Mass of recrystallized 2,3-dibromo-3-
phenylpropanoic acid recovered
Melting point range of crude product
Melting point range of recrystallized product
-
0.514 g
1.634 g
0.961 g
0.615 g
199.8 °C -204.3 °C
203.1 °C-208.9 °C

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