
Concept explainers
Interpretation: The percent yield for the given reaction under given conditions needs to be calculated.
Concept introduction: In a

Answer to Problem 65A
The percent yield for the given reaction is
Explanation of Solution
Given:
The mass of sample decomposed is,
The mass of
The given reaction is not balanced, as the number of oxygen on reactant side is 3 and on the product side is 2. So, in order to balance the reaction coefficient 2 is written before KClO3 on the reactant side and 2 before KCl and 3 before O2 on the product side. Thus, the balanced reaction is:
The number of moles of
The molar mass of
From balanced reaction, the mole ratio of
Now, the mass of produced
Molar mass of
Now, the percent yield is calculated using formula:
Substituting the values:
Hence, the percent yield for the given reaction is
Chapter 9 Solutions
World of Chemistry
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