Weight of 1 atom of an element is 6.44*10^-23 g.calculate the number of g atoms of the element in 40 kg.
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In 1 gram number of atoms = 6.44*10⁻²³
In 40 kg number of atoms = 6.44*10⁻²³*1000*40
=2.576*10⁻¹⁸
In 40 kg number of atoms = 6.44*10⁻²³*1000*40
=2.576*10⁻¹⁸
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