A compound which has the formula, Z2O3, contains element Z and oxygen combined in a ratio of 2.123 grams of element Z to 1.000 gram of oxygen. A 2.500 gram sample of a different compound containing the same two elements was analyzed and found to contain 1.400 grams of element Z. What is the formula for this second compound? Hint: The mass of each Z atom will be the same and this can be used to find molar ratios needed in the second compound.
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