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Determination of Formula (MgO)

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Please see attached PDF to review the experiment. I'm looking for calculations to complete the table, and answers to the proceeding questions.

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Solution Summary

The expert determines a formula for MgO.

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Trial 1 Trial 2
Wt of MgO 0.574 0.546
Wt of O 0.222 0.213
% MgO 61.32 ...

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