Question

Как найти массу 0.75 моль аммиака

Answer 1

Масса = n × молярная масса=0.75×17=12.75 г

Answer 2

Finding the Molar Mass of Ammonia

To find the molar mass of ammonia (NH3), you can use the atomic masses of the elements in the compound and sum them up. The molar mass of ammonia is the sum of the atomic masses of nitrogen (N) and hydrogen (H) in the compound.

The atomic mass of nitrogen (N) is approximately 14.01 g/mol, and the atomic mass of hydrogen (H) is approximately 1.008 g/mol.

Therefore, the molar mass of ammonia (NH3) can be calculated as follows: Molar mass of NH3 = (1 × atomic mass of N) + (3 × atomic mass of H)

Molar mass of NH3 = (1 × 14.01 g/mol) + (3 × 1.008 g/mol)

Molar mass of NH3 ≈ 17.03 g/mol

So, the molar mass of ammonia (NH3) is approximately 17.03 grams per mole.