Question

How many molecules of oxygen gas, O2, are produced?

2KClO sub 3, reaction arrow, 2KCl + 3O sub 2.

Answer 1

Answer on Question #52596 – Chemistry – Inorganic Chemistry

Question:

How many molecules of oxygen gas, $O_2$, are produced?

$$2 \mathrm{KClO_3} = 2 \mathrm{KCl} + 3 \mathrm{O_2}$$

Conditions are incomplete!!! That's why I assume that we had 1 mole of $\mathrm{KClO_3}$.

Answer:

Potassium chloride decompose to form potassium chloride and oxygen, according to the following reaction:

$$2 \mathrm{KClO_3} = 2 \mathrm{KCl} + 3 \mathrm{O_2}$$

It is shown that from 2 mol of potassium chloride we can obtain 3 mol of oxygen, so from 1 mol of potassium chloride we will obtain 1.5 mol of oxygen.

It is well known fact, that in 1 mole of pure substance there are $6.023 \times 10^{23}$ molecules, so in 1.5 mol of oxygen contain $9.035 \times 10^{23}$ molecules of oxygen.

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