1.

Use the data given in the following table to calculate the molar mass of naturally occurring argon. {:("Isotope","Isotopic molar mass","Abundance"),(.^(36)Ar,"35.96755 g mol"^(-1),"0.337"),(.^(38)Ar,"37.96272 g mol"^(-1),"0.063"),(.^(40)Ar,"39.9624 g mol"^(-1),"99.600):}

Answer»

Solution :`"Molar MASS of Ar"=Sigmaf_(i)A_(i)`
`""=0.00337xx35.96755+0.00063xx37.96272+0.99600xx39.96925`
`""=39.948" G mol"^(-1)`.


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