Question

The answer is given but I'd like to understand how one would get to the answer.

Answer 1

Answer:

Find the limiting reactant.

Explanation:

Using the ratio in the chemical formula, find the limiting reactant.

$0.164mol Mn*\frac{2molMnO3}{2molMn} = 0.164molMnO3$

$0.232molO2*\frac{2molMnO3}{3molO2} = 1.55molMnO3$

The second equation results in less mol of MnO₃, therefore it is the limiting reactant and changing the moles of O₂ to moles of MnO₃ which will give the theoretical yield which is 1.55 mol MnO₃.