Isotope vs Isotopologue abundance

calculate the mole fraction abundance (in percent) of the most abundant isotopologue of CO2 (~mass 44)

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[12C] = 98.89%, [13C] = 1.11%,[160] = 99.76%, [180] = 0.21% = = Table 2.6 Masses and possible configurations of CO2 isotopologues. Mass Isotopologue 17013 16 18 160 44 45 46 47 48 49 160'c160 160C 60, 10C160, 160CHO To'clo, o'clo, Toclo, foclo, o'clo 160'c180, 180'C', 'O'C''O, "O'Clo, o'c'o 180'CO, "O'C'O, "O'CO , 17 18 180 1813 18 [12C] = 98.89%, [13C] = 1.11%,[160] = 99.76%, [180] = 0.21% = = Table 2.6 Masses and possible configurations of CO2 isotopologues. Mass Isotopologue 17013 16 18 160 44 45 46 47 48 49 160'c160 160C 60, 10C160, 160CHO To'clo, o'clo, Toclo, foclo, o'clo 160'c180, 180'C', 'O'C''O, "O'Clo, o'c'o 180'CO, "O'C'O, "O'CO , 17 18 180 1813 18