So, we have the mass of oxygen gas (product) in kg and we need to find out the number of moles of KNO3 (reactant) from it.
First, let’s have a look at the data.
We will solve this problem through these steps:
Potassium nitrate decomposes on heating, producing potassium oxide and gaseous nitrogen and oxygen:
4KNO3(s) ⟶2K2O(s) + 2N2(g) + 5O2(g)
To produce 56.6 kg of oxygen, how many moles of KNO3 must be heated?
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Our tutors have indicated that to solve this problem you will need to apply the Stoichiometry concept. You can view video lessons to learn Stoichiometry. Or if you need more Stoichiometry practice, you can also practice Stoichiometry practice problems.
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What textbook is this problem found in?
Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.