5
QuizMultiple Choice
Gas Stoichiometry
Question 5 of 10 • *25-26 KCS18 Chemistry IC
Decomposition of potassium chlorate (KClO3) produces potassium chloride (KCl) and pure oxygen (O2). The balanced equation for the reaction is as follows.What volume of oxygen gas is released at STP if 10.0 g of potassium chlorate is decomposed? (The molar mass of KClO3 is 122.55 g/mol.)
Answer
A
0.914 LB
1.83 LC
2.74 LD
3.66 L