grams of 3-hydroxypropanal () must be dehydrated to produce of acrolein (), if the yield is .

Question

grams of 3-hydroxypropanal () must be dehydrated to produce  of acrolein (), if the  yield is .

Canvas Classes · Accepted Answer

Strategy:
 Percent yield accounts for incomplete reactions. To find the required mass of reactant, calculate the theoretical moles of product needed (), and convert those moles into mass using the reactant's molar mass.

Step 1: Calculate theoretical moles of acrolein required
Actual moles obtained .
Since yield is :

Step 2: Calculate mass of reactant
1 mole of 3-hydroxypropanal gives 1 mole of acrolein.

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