What is the Molar Mass of Ammonia NH3

Answer: The molar mass of Ammonia NH₃ is 17.03052.

Molar Mass of Ammonia NH₃

Ammonia (NH₃) is a compound made up of one nitrogen (N) atom and three hydrogen (H) atoms. To calculate the molar mass of ammonia, we sum the molar masses of all the atoms in the molecule. The molar mass, expressed in grams per mole (g/mol), represents the mass of one mole of NH₃ molecules.

Molar Masses of Nitrogen and Hydrogen

To find the molar mass of NH₃, we need the molar masses of nitrogen and hydrogen, which are as follows:

• Nitrogen (N): The molar mass of nitrogen is approximately 14.0067 g/mol.
• Hydrogen (H): The molar mass of hydrogen is approximately 1.00794 g/mol.

Calculating the Molar Mass of NH₃

The formula for ammonia (NH₃) consists of one nitrogen atom and three hydrogen atoms. To calculate the molar mass, we multiply the molar masses by the number of atoms in the molecule:

Molar mass of NH3 = (1 × molar mass of N) + (3 × molar mass of H)

Substitute the molar masses into the formula:

Molar mass of NH3 = (1 × 14.0067 g/mol) + (3 × 1.00794 g/mol)
                  = 14.0067 g/mol + 3.02382 g/mol 
                  = 17.03052 g/mol

Final Molar Mass of NH₃

The molar mass of ammonia (NH₃) is approximately 17.03 g/mol. This value indicates that one mole of NH₃ molecules has a mass of 17.03 grams per mole.

Conclusion

The molar mass of NH₃, or ammonia, is 17.03 g/mol. This is calculated by summing the molar masses of one nitrogen atom (14.0067 g/mol) and three hydrogen atoms (3 × 1.00794 g/mol).