Question

Name the compound and Determine the number of atoms.

22g NH3

Answer 1

Compound is: Ammonia

Number of NH3 Molecules: 7.7905x10^23

Number of N atoms: 7.7905x10^23

Number of H atoms: 2.337x10^24

Step-by-step explanation:

In order to obtain number of particles: We first need to calculate number of moles which is equal Mass/Molar mass (N=14 H=1)

Thus Number of moles equal 22/14+3 = 1.294117647 Moles

Number of particles equal Number of moles multiply Avogadro's number = 1.294117647 x 6.02x10^23 = 7.7905x10^23 Molecules of NH3

Since that each molecule contains one Nitrogen atom therefore, Number of molecules = number of atoms while each molecule contains 3 Hydrogen atoms therefore, Number of hydrogen atoms = 3x Number of Molecules = 2.337x10^24