1.

What is the weight of one molecule of CO_(2) ? (M.wt of CO_(2)=44g/mole)

Answer»

`3.37xx10^(-23)g`
`7.31xx10^(-23)g`
`2.1xx10^(-23)g`
`3.41xx10^(-23)g`

SOLUTION :1 mole `CO_(2)=44g`
`6.022xx10^(23)` molecule `= 44 g CO_(2)`
`:.` 1 molecule of `CO_(2)=(?)`
`= (44)/(6.022xx10^(23))=7.0307 XX 10^(-23)`
`= 7.31xx10^(-23)g`


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