1 ) Balance the chemical equation
[tex]2KClO_3\rightarrow2KCl+3O_2[/tex]2) Convert grams of potassium chlorate into moles of potassium chlorate.
The molar mass of KClO3 is 122.55 g/mol.
[tex]\text{mol KClO}_3=25.0gKClO_3\cdot\frac{1molKClO_3}{122.55gKClO_3}=0.2040molKClO_3[/tex]3) How many moles of KCl are produced from 0.2040 mol KClO3.
The molar ratio between KCl and KClO3
2 mol KCl:2 mol KClO3
[tex]\text{mol KCl}_{}=0.2040molKClO_3\cdot\frac{2molKCl_{}}{2molKClO_3}=0.2040molKCl_{}[/tex]4) Convert moles of KCl into grams of KCl
The molar mass of KCl is 74.55 g/mol
[tex]gKCl_{}=0.2040molKCl\cdot\frac{74.55gKCl_{}}{1molKCl_{}}=15.20gKCl_{}[/tex]15.20 g KCl will be produced.
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