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Chemistry, 16.02.2021 19:30 sugeilochoa

What is the percent composition by mass of oxygen in magnesium oxide, MgO?
(Molar mass of MgO = 40.3 g/mol)
%
Your answer should be rounded to three significant figures. Do not include units
In your answer.

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What is the percent composition by mass of oxygen in magnesium oxide, MgO?
(Molar mass of MgO...

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