Question
i need to calculate the theortetical yield by finding the limiting reactant of the experiment by converting reactants to product, then calculate the percent yield using the limiting reactant
-in my experiment the amout of crystals i obtained was 1.232 g (watch glass + filter paper = 31.228 g and watch glass, filter paper, + crystals = 32.460 g)
REACTION SCHEME H сно, ОН- ОСH, CH panisaldehyde acetophenone Molar Mass: 120.15g/mol Molar Mass: 136.15g/mol Molar Mass: 239
Procedure: Carefully measure 1.0 mL each of p-anisaldehyde and acetophenone and place them in a screw-cap test-tube. To this
TMY 2vA- nu 10 212 Shake the mixture for several minutes until your solution becomes homogenous again. At this point allow th
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Answer #1

Starting material/product

Molecular weight

Amount taken

moles

Equivalent

Product obtained

p-Anisaldehyde

136.15 (d=1.119)

1 mL (1.119 gm)

0.00821 mol

1

Acetophenone

120.15 (d=1.028)

1 mL (1.028 gm)

0.00855 mol

1.04

Product

239.30

1.232 gm

p-anisaldehyde is the limiting reagent in the reaction

136.15 gm of p-anisaldehyde gives 239.30 gm of Product

Therefore 1.119 gm of p-anisaldehyde will give x gm of product

Theoretical yield of the reaction = (1.119*239.30)/136.50 = 1.96 gm

Percent yield of the reaction = (1.232/1.96)*100 = 62.85%

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