What is the percent by mass of oxygen in mgo


Asked by wiki @ in Chemistry viewed by 213 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
In your answer.

Answered by wiki @



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

Answer: 39.7 percent


Do you know the better answer?

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