Question

M (nh3) = 72 г Ню (nh3) - ?

Answer 1

Ответ:

Объяснение:

n(NH3) = m / M = 72 / 17 = 4,2 моль

Answer 2

It appears that your question is incomplete or unclear. It seems like you are asking for the molar mass of ammonia (NH₃), which is a compound made up of nitrogen and hydrogen. The molar mass of ammonia can be calculated by adding the molar masses of nitrogen and hydrogen.

The molar mass of nitrogen (N) is approximately 14.01 g/mol, and the molar mass of hydrogen (H) is approximately 1.01 g/mol. To find the molar mass of ammonia (NH₃), you add these values together:

Molar mass of NH₃ = (1 × 14.01 g/mol) + (3 × 1.01 g/mol)
Molar mass of NH₃ = 14.01 g/mol + 3.03 g/mol
Molar mass of NH₃ = 17.04 g/mol

So, the molar mass of ammonia (NH₃) is 17.04 grams per mole (g/mol). If your question was something else or if you need further assistance, please provide more context or clarify your query.