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Homework Help: Find grams of product using a balanced chemical equation

  1. Dec 8, 2011 #1
    1. The problem statement, all variables and given/known data
    2KClO3 → 2KCl + 3O2

    How many grams of potassium chloride are produced if 25 g of potassium chlorate decompose

    2. Relevant equations

    3. The attempt at a solution

    25g * (1 mole KClO3/122.45 g KClO3) *(74.45g/ 1 mole KCl) =15.2 g KCl

    is this right??
  2. jcsd
  3. Dec 9, 2011 #2


    User Avatar

    Staff: Mentor

    Final result is OK, although you are missing a conversion factor, one that is crucial for the stoichiometry - 2 moles KCl produced per each 2 moles of KClO3 decomposed. Luckily to you 2/2 is just 1.
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