The mass of an atom of sodium is 23 u. Calculate the
number of sodium atoms in 1 mg.
Take 1 u = 1.66 x 10^27 kg.
the answer is 2.62×10^19
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Calculate the number of sodium atoms in 1 mg. Take 1 u = 1.66 x 10^-27 kg. the answer is 2.62×10^19.
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