SO2 is an air pollutant released during burning fossil fuels and from auto mobile exhaust
a) write the elements present in the gas
b) what are the valencies of sulphur in SO2 and SO3
C) find out the number of molecules in 5 moles of SO2
D) calculate the number of moles in 320g of SO2 gas
e) calculate the molar mass 10 moles sodium sulphate.
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Answer:
a) sulphur and oxygen
b) in SO2 the valency is 2
in SO3 the valency is 3
c)
d)
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