1.

A carbon compound containing only carbon and oxygen has an approximate molecular mass of 290. On analysis. It is found to contain 50% by mass of each element. What is the molecular formula of the compound?

Answer»

Solution :
The empirical formula `=C_(4)O_(3)`
Empirical formula mass `=(4xx12)+(3xx16)=96`
MOLECULAR mass =290
`n=("Mol.mass")/("Emp.mass")=(290)/(96)=3` APPROXIMATELY
Molecvular formula `=NXX` empirical formula
`=3xxC_(4)O_(3)=C_(12)O_(9)`


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