1.

A compound contain 4% oxygen, 4% sulphur and 10% carbon by mass. How many oxygen atoms will be present in 1 molecule of that compound.

Answer»

Solution :`n_(o)=(4)/(16)=(1)/(4) n_(o):n_(s):n_(C)=(1)/(4):(1)/(8):(5)/(6)`
`n_(s)=(4)/(32)=(1)/(8) n_(o):n_(s):n_(c)=6:3:5`
`n_(C)=(10)/(12)=(5)/(6)`


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