1. Determine the number of molecules:
* Avogadro's number: One mole of any substance contains 6.022 x 10²³ particles (atoms, molecules, etc.).
* Calculate the number of ammonia molecules: 0.850 mol NH₃ * (6.022 x 10²³ molecules/mol) = 5.1187 x 10²³ molecules of NH₃
2. Calculate the total number of atoms:
* Atoms per molecule: Each ammonia molecule (NH₃) contains 1 nitrogen atom and 3 hydrogen atoms, for a total of 4 atoms.
* Calculate the total number of atoms: (5.1187 x 10²³ molecules) * (4 atoms/molecule) = 2.0475 x 10²⁴ atoms
Therefore, there are approximately 2.0475 x 10²⁴ atoms in 0.850 mol of ammonia.
