# What is the percent by mass of oxygen in mgo

Asked by wiki @ in Chemistry viewed by 233 People

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

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

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## How to find the mass of oxygen in magnesium oxide

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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. …

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