Question

how can i calculate the theroetical yield for dibenzalacetone?

Reagent Data for Part 2: List of all reagents.cat Weight, amount used in m ore number of males and limiting reagent should be alysts and solvents. For reagents and catalysts, the molecular niting reagent should be tabulated. Substance Molar mass Grams or mL Moles or Density (if a (g/mol) mmoles liquid) benzaldehyde 106. 12 g/mol 5.10mL 0.0502mols 1.044g/mL acetone 58.08g Imol 2.00mL 10.0274 moles 0.791 glomL NaOH 39.997 g/mol 50 mL 1.894 moles 1.515 g/m2 ethanol 46,07g/mol 40 mL 10.685 moles 0.789 g/mL he above pre-lab information must be checked by the lab instructor (TA) upon entering the lab. TA initial here Complete this section after the experiment is complete. Did you have any difficulties performing this experiment? If yes, please explain. NO Fill in the Table of Product Data: Substance Molar mass (g/mol) Grams obtained % yield Theoretical yield in grams anisalacetophenone 239.30 g/mol 3.259 4.103g 79.2 % dibenzalacetone 234.293/mol 4129

Answer 1

Explanation of dibenzalaneetone fromation! He -e-eh-ket Ź Berezen acetone (bernzaldehyde) . heech a Bo TO15 my drooky ketone! aftach by alt it -Ho Dibenzalacetone.

Thas we can write - 2009 Hocm-liberalace tona - Two moles of benzaldehyde reacts with one moleg of acetone in presence of some Naot as abone and formed one mole of dibenzalacetone compounds, - Moleculas weight of benzaldehydeo = (4x12 +6+1+164 g = 106129 /mol molecular weight of acetone = 58.08 g/mol. 2 moles benzaldet, de required 1 moles acetone I mole banaldehyde requirred Imoles acetone 2:0.0502 moles bemaldehyde required 6 (0.050241 Imoles acetone. . te .0.025 I moles acetone. So here neetone present 0.0274m This is why here reefone has encens amount.

0.0502 moles benzaldehyde = 0.05024106.12 g benzaldehyde > 5.32 benzaldehyde. 2 moles benzaldehycle forms 1 mole dibenalacetone pot (2106:12). 2.212.248 2341299 234.29 . 5.327g benzaldehycle forms -- the 45.327g 212.24 I 5.88 g dibenzal acetone polt. Theoritical field in grams: 5.889. Grams obtained 24.129 ams .:7. yield a 4.12 x 1 5.38 x 100 - ~ 70.07 % 70.1

Substance I molas I Grams I obtained I Theoretical field in / grams anisalaceto- phenone 2391309fm0|| 3.259 3.259 41039 179.21 dibenzalace tone 234.29 1 4.12q 5.889 5.889 12 gtmol 4,129 170.14