Question

2 moles KCl + 3 moles O2 → 2moles KCIO3

Calculate the number of particles of each substance based on the number of moles from the balanced equation

Answer 1

KCl ⇒ 1.205x10²⁴ molecules

O₂ ⇒ 1.807x10²⁴ molecules

KClO₃ ⇒ 1.205x10²⁴ molecules

Step-by-step explanation:

In order to calculate the number of particles from the number of moles, we have to use Avogadro's number, which states the number of particles in one mol:

• In 1 mol there are 6.023x10²³ particles (ions, molecules or atoms).

So now we multiply the number of moles of each substance by Avogadro's number:

• KCl ⇒ 2 mol * 6.023x10²³ molecules/mol = 1.205x10²⁴ molecules

• O₂ ⇒ 3 mol * 6.023x10²³ molecules/mol = 1.807x10²⁴ molecules

• KClO₃ ⇒ 2 mol * 6.023x10²³ molecules/mol = 1.205x10²⁴ molecules