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Which one of the following will have the...

Which one of the following will have the largest number of atoms?
(i) 1 g Au (s)
(ii) 1 g Na (s)
(iii) 1 g Li (s)
(iv) 1 g of Cl2(g)

Text Solution

Verified by Experts

No. of atoms can be calculated as:
(i) 1 g Au `=1/197 xx 6.022 xx 10^(23) = 6.022/1.97 xx 10^(23)`
(ii) 1 g Na `=(6.022)/23 xx 10^(23)`
(iii) 1g Li `=(6.022 xx 10^(23))/7`
(iv) 1g `Cl_(2) =(2 xx 6.022 xx 10^(23))/71 = (6.022 xx 10^(23))/35.5`
It is clear that 1g Li contain largest number of atoms.
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