Question

. Find out the molecular mass of
i) Acetic Acid ii) Ammonia iii) Sulphur molecule iv) water molecule

Answer 1

Answer:

(i) 60.05g/mol

(ii) 17.03g/mol

(iii) 256g/mol

(iv) 18.02g/mol

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Answer 2

Given :-

• Find out the molecular mass of

         i) Acetic acid

        ii) Ammonia

         iii)Sulphur molecule

        iv) Water molecule

Solution :-

• Let us find the molecular masses one by one

    →  Acetic acid (CH₃COOH)

        Molecular mass = 12 + 3 + 12 + 16 + 16 + 2

    ⇒ Molecular  mass = 60 u

    → Ammonia (NH₃)

       Molecular mass = 14 + 3

   ⇒ Molecular mass = 17 u

    → Sulphur molecule (S₈)

      Molecular mass = 32 × 8

   ⇒  Molecular mass = 256 u

  → Water molecule (H₂O)

      Molecular mass = 2 + 16

  ⇒ Molecular mass = 18 u

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