**The Number of Sodium Atoms in 2 Moles of Sodium Ferrocyanide**

To determine the number of sodium atoms in 2 moles of sodium ferrocyanide, we need to understand the composition and formula of sodium ferrocyanide.

**Composition of Sodium Ferrocyanide:**
Sodium ferrocyanide is an inorganic compound with the formula Na4Fe(CN)6. It is also known as sodium hexacyanoferrate(II) or yellow prussiate of soda. The compound consists of sodium (Na) ions, iron (Fe) ions, and cyanide (CN) ions.

**Formula of Sodium Ferrocyanide:**
The formula Na4Fe(CN)6 indicates that there are four sodium (Na) ions, one iron (Fe) ion, and six cyanide (CN) ions in each molecule of sodium ferrocyanide.

**Avogadro's Number:**
Avogadro's number is a fundamental constant in chemistry that represents the number of particles (atoms, molecules, or ions) in one mole of a substance. The value of Avogadro's number is approximately 6.022 × 10^23 particles/mol.

**Calculating the Number of Sodium Atoms:**
Since each molecule of sodium ferrocyanide contains four sodium (Na) ions, we can determine the number of sodium atoms in one mole of sodium ferrocyanide.

1 mole of sodium ferrocyanide = Avogadro's number of molecules (6.022 × 10^23)

Since there are four sodium ions in one molecule of sodium ferrocyanide, the number of sodium ions in 1 mole of sodium ferrocyanide is also four times Avogadro's number:

Number of sodium ions in 1 mole of sodium ferrocyanide = 4 × Avogadro's number

Substituting the value of Avogadro's number, we get:

Number of sodium ions in 1 mole of sodium ferrocyanide = 4 × 6.022 × 10^23

Now, to calculate the number of sodium atoms in 1 mole of sodium ferrocyanide, we multiply the number of sodium ions by the number of sodium atoms per sodium ion, which is 1:

Number of sodium atoms in 1 mole of sodium ferrocyanide = 4 × 6.022 × 10^23 × 1

Therefore, the number of sodium atoms in 1 mole of sodium ferrocyanide is 4 × 6.022 × 10^23.

Since we are given 2 moles of sodium ferrocyanide, we can multiply the number of sodium atoms in 1 mole by 2:

Number of sodium atoms in 2 moles of sodium ferrocyanide = 2 × (4 × 6.022 × 10^23)

Simplifying the expression, we find:

Number of sodium atoms in 2 moles of sodium ferrocyanide = 8 × 6.022 × 10^23

Thus, the number of sodium atoms in 2 moles of sodium ferrocyanide is 4.8184 × 10^24.

4.8 × 10 ^24 Na