How do you calculate the formula mass of NaCl and the molecular mass of CH4?

How do you calculate the formula mass of NaCl and molecular mass of CH4?

Formula mass Definition

The term “FORMULA MASS” refers to the total atomic masses of the ions contained inside a formula unit of an ionic compound.

nacl ionic compound
nacl ionic compound

NaCl Formula mass

Calculating the formula mass of NaCl by taking the sum of atomic masses of the ions contained inside a formula unit of an ionic compound NaCl.

Formula mass of NaCl = 1(23)+1(35.5)

Formula unit of NaCl = 58.5 a.m.u

Molecular mass Definition

 Molecular mass is the sum of the atomic masses of the atoms in a molecule.

CH4  Molecular mass

Calculating the molecular mass of CH4 by taking the sum of atomic masses of the atoms in a CH4 molecule.

Molecular mass of CH4=1(12)+4(1)

Molecular mass of CH4= 16a.m.u

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