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The weight of a molecule of the compou...

The weight of a molecule of the compound `C_(60 ) H_(122) ` is :

A

`1.4 xx 10 ^(-21) g`

B

`1.09 xx 10 ^(-21) g `

C

`5.025 xx 10 ^(23) g `

D

`16.023 xx 10 ^(23) g `

Text Solution

Verified by Experts

The correct Answer is:
A
Mass of 1 molecule `C _(60) H_(122)`
`=("Molecules mass " xx" No… of particles ")/( "Avagardro's No .")`
`= 842 xx 6.023 xx 10 ^(23)`
`=139.797xx 10^(-23) = 1.39797 xx 10 ^(-21)` g
` C_(60 ) H_(122) = 12 xx60+1xx122`
`= 720 +122= 842`
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