[yourdeath01]

Basically we did a diels-alder lab where we reacted maleic anhydride and furan, measure melting point and decide from melting point using literature melting point if the product is endo or exo and therefore if its under kinetic or themodynamic control.

Heres the overall reaction:

https://prnt.sc/pjd50y

Initial mass of maleic anhydride (dienophile): 1.205 g

Reagent used with maleic anhydride was anhydrous diethyl ether: 10.0 mL

After reacting maleic anhydride with diethyl ether we added furan: 1.0 mL

Mass of crude product: 1.175 g

Mass of purified product: 0.334 g

>>> I am being asked to calculuate theoretical yield, % yield of crude and % yield of purified product

I converted maleic anhydride and my furan to moles and found out that maleic anhydride is the limiting reagent

So 98 g of maleic anhydride + 66 g of furan produces 166 grams of product so

So 1.205 g of furan x 166 grams (product) / 98 g (maleic anyhydride) = 2.041 theoretical yield > is this correct?

So now % yield of crude is 1.175/2.041 * 100 = 57.56% > is this correct?

% yield of purified is 0.334 / 2.041 * 100 = 16.36% > is this correct?
 

[chenbeier]

Some small errors but ok.