In an experiment, zinc chlorate decomposed according to the following chemical equation, Zn(CIO3)2 -- ZnCl2 + O2
(Molar mass of Zn(CIO3)2 = 232.29 g/mol; ZnCl2 = 136.286 g/mol O2 = 31.998 g/mol)
If the mass of zinc chlorate was 150 grams, which of the following calculations can be used to determine the mass of oxygen gas formed?

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