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Calculate the atomic mass (average) of c...

Calculate the atomic mass (average) of chlorine using the following data:
`{:(,,"% natural abundance",,"Molar mass"),(.^(35)Cl,,75.77,,34.9689),(.^(37)Cl,,24.23,,36.9659):}`

Text Solution

Verified by Experts

Fractional abundabce of `.^(35)Cl=0.7577`,
Molar mass `=34.9689`
Fraction abundance of `.^(37)Cl=0.2423`,
Molar mass`=36.9659`
`:.` Average atomic mass
`=(0.7577)(34.9689 am u)+(0.2423)(36.9659 am u)`
`=26.4959+8.9568=35.4527`
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Knowledge Check

  • Average atomic mass of chlorine is 35.5 then the correct naturally occuring molar ratio of "^(35)Cl & ^(37)Cl is

    A
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    B
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    C
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    D
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    A
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    B
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