Naturally occurring chlorine is composed of two isotopes:
75.76% Cl-35 (mass 34.9688 amu) and 24.24% Cl-37 (mass
36.9659 amu). Naturally occurring oxygen is composed of three
isotopes: 99.757% O-16 (mass 15.9949 amu), 0.038% O-17
(mass 16.9991 amu), and 0.205% O-18 (mass 17.9991 amu). The
compound dichlorine monoxide is composed of two chlorine
atoms and one oxygen atom bonded together to form the Cl2O
molecule. How many Cl2O molecules of different masses naturally
exist? Give the masses of the three most abundant Cl2O
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