Calculate the gram atomic weight of oxygen if weight of its one atom is 16 a.m.u.
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answer is 16.
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Detailed Solution
1 a.m.u. = 1.66 × 10- 24 g Wt. of one oxygen atom= 16 a.m.u. = 16 x 1.66 x 10- 24g( ∴ Wt. of 1 a.m.u. = 1.66 x 10- 24 g)∴ Wt. of Avogadro no. ( = 6.023 x 1023) of oxygen atoms = 16 X 1.66 X 10- 24 g X 6.023 X 1023 = 16 g