How many atoms present in 3.01g of a substance
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The number of atoms in a mole is the number of atoms in the molecule times Avogadro's number. Sucrose is C12H22O11 so it has 45 atoms in each molecule. So you multiply 45 atoms/molecule x 6.022 x 10^23 molecule/mole = 2.7099e+25 atoms/mole.
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