How many moles of atoms are in 9.00 g of 13c? express your answer numerically in moles?

Number of moles is defined as the ratio of given mass in grams to the molar mass of compound.

Number of moles =

Now, put the value of given mass of in grams and molar mass of in g/mol i.e. 13 g/mol.

Thus,

number of moles =

= 0.692 mol

Hence, number of moles of = 0.692 mol