What is the theoretical yield. I think the limiting reagent is acetone and it’s

Question

What is the theoretical yield. I think the limiting reagent is acetone and it’s a 2:1 ratio??? The reaction is acetone + 2 benzaldehyde yields dibenzalacetone SYNT0720: The Aldol Condensation: Synthesis of Dibenzalacetone Reagents and Properties molar mass substance quantitymp (C) bp (C) d (g/mL) 0.6 g 2.1 g acetone benzaldehyde dibenzalacetone* ethanol sodium hydroxide, 20 mL 40.00 58.08 106.12 224 56 178 0.791 1.044 110 55 mL 46.07 78 10% aqueous product orit Preview Prepare an ice-water bath Place ethanol and NaOH solution into a beaker . Cool the ethanol-NaOH solution to 20°C - Prepare a mixture of benzaldehyde and acetone . Add the benzaldehyde-acetone mixture to the ethanol-NaOH solution

Explanation / Answer

2 C6H5CHO + CH3COCH3 --------> C17H14O +2H2O

mass of dibenzalacetone produced from acetone = 0.6x1 mole of dibenzalacetonex 224 mol wt of dibenzalacetone/58.8x 2moles of benzaldehyde = 134.4O.6 = 1.142 gms

moles of dibenzalacetone produced from benzaldehyde = 2.1x1 mole of dibenzalacetonex 224 mol wt of dibenzalacetone/106.12x 1mole of acetone = 470.4/106.12 = 4.429 gms

The reactant that produces less amount of product is limiting reagent So acetone is limting reagent and the theoritical yield of dibenzalacetone is 1.142 gms

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