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The number of atoms in 8 g of sodium is ...

The number of atoms in 8 g of sodium is `x xx 10^23`. The value of x is ____________.
(Nearest integer )
[Given : `N_A = 6.02 xx 10^23 mol^(-1)`
Atomic mass of Na = 23.0 u]

Text Solution

Verified by Experts

The correct Answer is:
2
No. Of atoms `= 8/23 xx 6.02 xx 10^(23) =2.09 xx 10^(23)`
`= 2 xx 10^(23)`
`= x xx 10^(23)`
`x = 2`
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