1.

Calcualte the number of oxygen atoms in 88g CO_(2). What would be the mass of CO having the same number of oxygen atoms?

Answer»

Solution :88g `CO_(2)=2` moles of `CO_(2)`One molecule CONSISTS of 2 OXYGEN atoms.
No. of oxygen atoms `=2xx2xx6.02xx10^(23)=24.08xx10^(23)`
CO molecuel has one oxygen atom.
Mass of CO containing 24.08`XX 10^(23)` oxygen atoms
`=(28)/(6.02xx10^(23))xx24.08xx10^(23)=112g`


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