A 10 g sample of C-13 atoms and another 10 g sample of C-12 atoms. the 10 g sample of carbon atoms contains more atoms is C-12.
The Avogadro's number is given as :
1 mole of substance = 6.022 × 10²³ atoms
moles in 10 g of C-13 = mass / molar mass
= 10 / 13
= 0.76 mol
no. of atoms in C-13 = 0.76 × 6.022 × 10²³ atoms
= 4.5 × 10²³ atoms
moles of 10 g of C - 12 = mass / molar mass
= 10 / 12
= 0.83 mol
no. of atoms in C-12 = 0.88 × 6.022 × 10²³ atoms
= 5.2 × 10²³ atoms
so, The C-12 has more number of atoms.
Thus, A 10 g sample of C-13 atoms and another 10 g sample of C-12 atoms. the 10 g sample of carbon atoms contains more atoms is C-12.
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