In a Wittig Reaction, I used 0.175 g of 4-nitrobenzaldehyde and0.467 g of benzyltriphenylphosphonium to yield 4-nitrostilbene. Iam trying to find the percent yield for crude and trans product. Inthis experiment, the crude produt contains cis and trans productand we used recrystalized the crude product to get the transproduct only. I have a basic idea of finding percent yields. I havefound that 4-nitrobenzaldehyde is the limiting reagent andmultiplied that number of moles by the molar weight of4-nitrostilbene. (I believe this is for the crude product?) But Iam wondering if the theoretical yields for crude and trans onlyshould be different. The actual yield I got for crude is 0.6888gand the trans is 0.0916g. Thanks
