A 0.1 molar sample of propanal reacts completely with Fehling's solution. What is the expected mass of the red cuprous oxide precipitate formed?
Q1. A 0.1 molar sample of propanal reacts completely with Fehling's solution. What is the expected mass of the red cuprous oxide precipitate formed?
Answer: 14.3g
Explanation: One mole of aldehyde produces one mole of Cu2O (143g); thus, 0.1 moles yield 14.3g. 143g is the mass for a full mole.