# Science

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If 15gram of potassium trioxochlorate V is heated in the presence of MnO2.What is the mass of chloride produce?

• Science -

Potassium trioxochlorate (V) is another name for KClO3. The balanced reaction is
2KClO3(s) + heat ¨ 2KCl(s) + 3O2(g)
------------ (MnO2 catalyst)

15 g of KClO3 is 15g/122.6 g/mol = 0.1224 mol KClO3. You will make the same number of moles of KCl. Multiply that by the molar mass of KCl (74.6 g/mol) for the answer.
I get 9.13 moles

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