Question

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Calculate the molecular masses of: H2, O2 ​

Answer 1

Answer:

i) Molecular mass of H2= 2 x Atomic mass of H

= 2 x 1

= 2 u

ii) Molecular mass of O2= 2 x Atomic mass of O

= 2 x 16

= 32 u

Answer 2

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The total sum of the masses of the atoms or elements present in the molecule is termed as molecular mass.

i) Molecular mass of H2= 2 x Atomic mass of H

= 2 x 1

Molecular mass of H2 = 2 u

ii) Molecular mass of O2= 2 x Atomic mass of O

= 2 x 16

Molecular mass of O2= 32 u