Question

D 

Question 3 

3 pts 

(This is the same reaction from #2.) You repeat the Diels-Alder reaction from lab using 3.4 g of maleic 

anhydride (98.06 g/mol) and 2.5 g of cyclopentadiene (66.1 g/mol) to form the final solid product 

(164.16 g/mol). All compounds are in a 1:1 ratio in the balanced equation. 

Assuming all the limiting reagent reacts, how much of the other reagent is there in excess? 

0.469 g 

0 0.309 g 

O 

1.71 g 

O 

0.208 g 

D 

Question 3 

3 pts 

(This is the same reaction from #2.) You repeat the Diels-Alder reaction from lab using 3.4 g of maleic 

anhydride (98.06 g/mol) and 2.5 g of cyclopentadiene (66.1 g/mol) to form the final solid product 

(164.16 g/mol). All compounds are in a 1:1 ratio in the balanced equation. 

Assuming all the limiting reagent reacts, how much of the other reagent is there in excess? 

A. 0.469 g 

B. 0 0.309 g 

C. 1.71 g 

D. 0.208 g 

Answer 1

Sole maleic cyclopentidiene A yonida . B A = 3.4 g Molar mass= 98. o6. gmot- . no. of moles of A = 3.4 g = 0.0347 moles. 98.06 gmot! B = 2.54 molar mass = 6611 gomot no. of moles of B = 0.5 g = 0.0378 moles: 6619 _PFDybe reacted B = 0.0347 ____left. B = 0.0378 – 0.0347 -- B = 0,0031 mass of B left or unreacted = 0.0031 66.1 option (D) is correct. . -- 0.2059 moles moles g