Question

Molecular mass of chlorine gas, ammonia gas, sulphur trioxide gas

Answer 1

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Here's the answer you are looking for

The molecular formula of chlorine gas is Cl2 and the atomic weight of Cl is 35.5g
So, the molecular mass of Cl2 is 35.5 × 2 = 71g

The molecular formula of ammonia gas is NH3 and the atomic weight of N is 14g and that of H is 1g.
So, the molecular mass of NH3 is 14 + 1 × 3 = 17g.

The molecular formula of sulphur trioxide gas is SO3 and the atomic weight of S is 32 and that of O is 16.
So, the molecular mass of SO3 is 32 + 16 × 3 = 80g.


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Answer 2

Answer:

Explanation:

a)

Chlorine gas

Cl2 = 2 * 35.5 = 71 u

b)

Ammonia gas

NH3 = 14 + 3*1 = 17 u

c)

Sulphur trioxide gas

SO3 = 32 + 3*16 = 80 u