1. Determine the Formula of Ammonium Carbonate

Ammonium carbonate has the formula (NH₄)₂CO₃. This means it contains:

* Two ammonium ions (NH₄⁺)

* One carbonate ion (CO₃²⁻)

2. Find the Molar Mass of Ammonium Carbonate

* N: 14.01 g/mol * 2 = 28.02 g/mol

* H: 1.01 g/mol * 8 = 8.08 g/mol

* C: 12.01 g/mol * 1 = 12.01 g/mol

* O: 16.00 g/mol * 3 = 48.00 g/mol

Total molar mass of (NH₄)₂CO₃ = 28.02 + 8.08 + 12.01 + 48.00 = 96.11 g/mol

3. Calculate the Moles of Ammonium Carbonate

Assume you have 6.965 g of ammonium carbonate:

Moles = mass / molar mass

Moles = 6.965 g / 96.11 g/mol = 0.0725 moles of (NH₄)₂CO₃

4. Determine the Moles of Ammonium Ions

Since each mole of ammonium carbonate contains two moles of ammonium ions:

Moles of NH₄⁺ = 0.0725 moles (NH₄)₂CO₃ * 2 moles NH₄⁺ / 1 mole (NH₄)₂CO₃ = 0.145 moles of NH₄⁺

Therefore, there are 0.145 moles of ammonium ions in 6.965 grams of ammonium carbonate.