Calculate the Molar Mass of NH4 2S

To calculate the molar mass of the compound NH₄2S, we first need to understand the components of the molecule.

1. **Determine the number of each type of atom**:

• There are 2 nitrogen (N) atoms.
• There are 8 hydrogen (H) atoms (4 from each NH₄ unit, and there are 2 units).
• There is 1 sulfur (S) atom.

2. **Find the atomic masses** (approximations):

• Nitrogen (N) has an atomic mass of about 14.01 g/mol.
• Hydrogen (H) has an atomic mass of about 1.01 g/mol.
• Sulfur (S) has an atomic mass of about 32.07 g/mol.

3. **Calculate the total mass for each type of atom**:

• For nitrogen: 2 N × 14.01 g/mol = 28.02 g/mol
• For hydrogen: 8 H × 1.01 g/mol = 8.08 g/mol
• For sulfur: 1 S × 32.07 g/mol = 32.07 g/mol

4. **Add these together**:

28.02 g/mol (N) + 8.08 g/mol (H) + 32.07 g/mol (S) = 68.17 g/mol

Therefore, the molar mass of NH₄2S is approximately 68.17 g/mol.