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Need help haven’t taken chemistry Potassium chlorate decomposes into potassium chloride and oxygen gas.Relevant atomic masses: K-39.1, Cl-35.5, O-16.0.

Need help haven t taken chemistry Potassium chlorate decomposes into potassium chloride and oxygen gas Relevant atomic masses K 39 1 Cl 35 5 O

Answer :

Answer:

6.84L of O2 can be produced.

Explanation:

1st) It is necessary to write and balance the chemical reaction:

[tex]2KClO_3\rightarrow2KCl+3O_2[/tex]

From the balanced reaction we know that 2 moles of KClO3 decompose into 2 moles of KCl and 3 moles of O2.

2nd) It is necessary to calculate the molar mass of KClO3 and O2:

- KClO3 molar mass: 122.6g/mol

- O2 molar mass: 32g/mol

3rd) In the conversion we have to consider:

- KClO3 molar mass.

- The stoichiometry of the reaction between KClO3 and O2: from 2 moles of KClO3, 3 moles of O2 are produced.

- The relation of moles and volume: 1 mole occupies 1 L.

[tex]24.95gKClO_3*\frac{1mol}{122.6g}*\frac{3molesO_2}{2molesKClO_3}*\frac{22.4L}{1moleO_2}=6.84L\text{ }O_2[/tex]

So, 6.84L of O2 can be produced.

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