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OpenStudy (anonymous):

I have a Determining An Empirical Formula lab. Here is my data: mass of empty crucible cover: 29.9g mass of crucible & cover + Mg: 30.1g mass of crucible & cover + oxide: 30.2g How do you do the calculations: find the number of moles of Mg used moles of O that reacted ratio of moles of Mg to moles of O

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