Question

calculate the molecular mass of

Answer 1

Chlorine gas
=cl2=2*35.5=71(atomic mass of chlorine is 35.5)
Ammonia NH3(N=14,H=1)
=1*14+3*1=17
Sulphur trioxide SO3(S=32,O=16)
=1*32+3*16=32+48=60