Potassium Chlorate Decomposes Upon Heating as Follows

Multiple Choice

Potassium chlorate decomposes upon heating as follows:
2KClO₃(s) → 2KCl(s) + 3O₂(g)
A 2.72-g sample of KClO₃ decomposes, and the oxygen at 23.4°C and 0.935 atm is collected. What volume of oxygen gas will be collected, assuming 100% yield?

A) 2.21 mL
B) 0.577 mL
C) 0.0456 mL
D) 0.0684 mL
E) 0.866 mL