Chemistry Calculating Percent Yield 0.75g of 3-nitrobenzuldehyde(mw=151.1) is mixed with 0.60mL(mw=120.2, d=1.03g/mol) of acetophenone and 4.0mL of 95% ethanol to dissolve 0.5mL of sodium hydroxide is added then mixed on a stir plate Weight of dried crude product crystals is 2.0186g Take 0.5g of the crude crystals and mix in 20mL of hot methanol to recrystalize Weight of pure crystals is 0.0233g Determine the percent yield of both the crude and pure crystals, show your work.

Chemistry Calculating Percent Yield 0.75g of 3-nitrobenzuldehyde(mw=151.1) is mixed with 0.60mL(mw=120.2, d=1.03g/mol) of acetophenone and 4.0mL of 95% ethanol to dissolve 0.5mL of sodium hydroxide is added then mixed on a stir plate Weight of dried crude product crystals is 2.0186g Take 0.5g of the crude crystals and mix in 20mL of hot methanol to recrystalize Weight of pure crystals is 0.0233g Determine the percent yield of both the crude and pure crystals, show your work.

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter2: Crystallization

Section: Chapter Questions

Problem 3Q

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Question

Chemistry

Calculating Percent Yield
0.75g of 3-nitrobenzuldehyde(mw=151.1) is mixed with 0.60mL(mw=120.2, d=1.03g/mol) of acetophenone and 4.0mL of 95% ethanol to dissolve

0.5mL of sodium hydroxide is added then mixed on a stir plate

Weight of dried crude product crystals is 2.0186g

Take 0.5g of the crude crystals and mix in 20mL of hot methanol to recrystalize

Weight of pure crystals is 0.0233g

Determine the percent yield of both the crude and pure crystals, show your work.

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