Question

Calculate the atomicity of ‘silver nitrate’

Answer 1

Explanation:

The molar mass of a chemical is the molecular weight of the chemical in grams.

i.e. 1 mole = (molecular mass) grams of the chemical.

Molecular weight of silver nitrate = the sum of the atomic masses of the atoms in 1 "molecule" of silver nitrate, in grams.

Formula for silver nitrate =

Ag NO³

This gives the molar mass as=

[107.87+14.007+(3⋅15.999)]=169.874 grams/mole

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Answer 2

Answer:

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• Silver nitrate (AgNO3) contains 1 Ag, 1 N and 3 O atoms, so total number of atoms are 1+1+3=5, Therefore atomicity of AgNO3 is 5 i.e. penta-atomic.