How many moles of atoms are in 4.00 g of 13C?
Express your answer numerically in moles.
The mole (abbreviated mol) is a counting unit used to simplify calculations that would otherwise involve very large numbers. The mole is equivalent to the number of carbon atoms in exactly 12 g of isotopically pure 12C, or 6.02 × 1023. This number is known as Avogadro's number in honor of Amedeo Avogadro. Avogadro's number can be used as a conversion factor between moles and atoms as shown here:
The molar mass of a substance is the mass of one mole of a substance and is written in units of grams per mole. The molar mass of an atom is equivalent to its atomic mass whereas the molar mass of a substance is equivalent to its formula weight.
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