Calculate the molecular mass of the following.
A. Chlorine gad
B. Ammonia gas
C. Sulphur regicide gas
Atomic mass of cl=35.5u
N=14u
H=1u
S=32u
O=16u

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Solution

a. Chlorine Gas-Cl2
Molecular Mass=2(35.5u)
= 71u
b. Ammonia - NH3
Molecular Mass= 14u+3(1u)
=17u
c.Sulphur Trioxide-SO3
Molecular Mass=32u+3(16u)
=32u+48u
=80u
i think it's not sulphur regicide it's sulphur trioxide

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