grams of 3-hydroxy propanal (MW=74) must be dehydrated to produce 7.8 g of acrolein (MW=56) if the percentage yield is 64. (Round off to Nearest Integer)

Question

Canvas Classes · Accepted Answer

Strategy:
 Work backwards from the actual yield of acrolein and the percentage yield to find the theoretical amount of 3-hydroxy propanal required ( mol ratio).

Step 1: Calculate theoretical moles needed
Moles acrolein (actual) .
Theoretical moles required .

Step 2: Calculate mass of reactant
Mass of 3-hydroxy propanal .
Nearest integer is 16.

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