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a. The original sample is not pure, but is contaminated with athermally stable compound. Will the reported mole ratio of CaO toCO2 be too high, too low, or unaffected? Explain.

b. Spattering does occur and some of the sample is lost ontothe laboratory bench. Will the reported mole ratio of tin to oxygen be too high, too low, or unaffected? Explain.

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