Here's how to calculate the number of moles in 1 gram of ammonia (NH₃):

1. Find the molar mass of ammonia:

* Nitrogen (N) has a molar mass of 14.01 g/mol.

* Hydrogen (H) has a molar mass of 1.01 g/mol.

* Ammonia (NH₃) has a molar mass of (14.01 g/mol) + (3 * 1.01 g/mol) = 17.03 g/mol

2. Use the formula:

* Moles = Mass / Molar mass

3. Calculate:

* Moles = 1 g / 17.03 g/mol

* Moles ≈ 0.0587 mol

Therefore, there are approximately 0.0587 moles present in 1 gram of ammonia.