find the molecular mass of NH3
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Answered by
5
The atomic masses of N and H are 14 g/mol and 1 g/mol respectively. The molecular weight of ammonia is 14+3(1)=17 g/mol.
Convert unit from g to kg
17 g/mol×
1000 g
1 kg
=0.017 kg/mol
1 mole of ammonia weighs 0.017 kg and contains Avogadro's number ( 6.023×10
23
) of molecules.
Molecular mass of an ammonia molecule =
6.023 ×10
23
molecules/mol
0.017 kg/mol
=2.82×10 −26kg
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Answered by
1
Atomic mass of N=14
Atomic mass of H=1
Molecular mass of NH3= 14+1×3
= 14+3
=17 u
Hope it helps.......
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