(i) The number of atoms present in 52 mol of Ar are 52 x 6.022 x 10^23
(ii) 52 u of He will contain 52/4 = 13atoms
(iii) 52g of He will contain 52/4 x 6.022 x 10^23 = 7.82 x 10^24 atoms
(i) The number of atoms present in 52 mol of Ar are 52 x 6.022 x 10^23
(ii) 52 u of He will contain 52/4 = 13atoms
(iii) 52g of He will contain 52/4 x 6.022 x 10^23 = 7.82 x 10^24 atoms
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