Calculate the number of atoms of carbon present in 30 g of carbon
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Molecular weight of Carbon = 12g
Given mass = 30g
Thus, number of moles = 30/12 = 2.5 moles.
Thus, number of atoms = moles×avagadro number = 2.5 × 6.022 × 10^23
= 1.5 × 10^24.
Thus 30 g of carbon contains 1.5 × 10^24 atoms of carbon.
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