1.

Calculate the number of molecules in 11.2 litre of CO_(2) at S.T.P

Answer»

SOLUTION :`"NUMBER of MOLES of "CP_+(2)=("Volume at S.T.P")/("Molar volume")`
? `=11.2//22.4`
`="0.5 MOLE"`
`"Number of molecules of "CO_(2)="Number of molesof "CO_(2)xx"Avogadro.s number"`
`=0.5xx6.023xx10^(23)`
`=3.011xx10^(23)" molecules of "CO_(2)`


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