Respuesta :

Answer:

0.022 mole

Explanation:

To obtain the desired result, first, we need to write a balanced equation that will produced KCl from KClO3. This is illustrated below:

2KClO3 —> 2KCl + 3O2

Next, let us calculate the number of mole of KClO3 present in 2.73g of KClO3. This is illustrated below:

Molar Mass of KClO3 = 39 + 35.5 + (16x3) = 39 + 35.5 + 48 = 122.5g/mol

Mass of KClO3 from the question = 2.73g

Number of mole of KClO3 =?

Number of mole = Mass/Molar Mass

Number of mole of KClO3 = 2.73/122.5 = 0.022 mole

Now, we can obtain the number of mole of KCl produced from 2.73g of KClO3 as follow:

2KClO3 —> 2KCl + 3O2

From the equation above,

2 moles of KClO3 produced 2 moles KCl.

Therefore, 0.022 mole of KClO3 will also produce 0.022 mole of KCl.

0.022 moles of KCl will be formed.

Balanced chemical reaction:

2 KClO₃ → 2KCl + 3O₂

Given:

Mass of KClO₃ = 2.73 grams

Molar Mass of KClO₃ = 39 + 35.5 + (16*3) = 39 + 35.5 + 48 = 122.5g/mol

To find:

Number of mole of KClO₃ =?

Number of mole = Mass/Molar Mass

Number of mole of KClO₃ = 2.73/122.5 = 0.022 mole

Mass-ratio concept:

2 moles of KClO₃ produced 2 moles KCl.

Thus, 0.022 mole of KClO₃ will also produce 0.022 mole of KCl.

Find more information about Number of moles here:

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