Question Detail

CHM 101 Stoichiometry Objective Question

Question

70 g MnO₂ reacts with 3.5 moles of HCl according to MnO₂ + 4HCl → MnCl₂ + Cl₂ + 2H₂O. If the yield is 42%, what mass of Cl₂ is produced?
Options
A 48 g
B 26 g
C 24 g
Correct Answer
D 12 g
Correct Answer

Option C is the correct answer.

Detailed Explanation

MnO₂ is limiting, giving theoretical chlorine about 57 g. At 42% yield, actual mass is about 24 g.

Hint

Find limiting reagent first, then apply percentage yield.

Question Info