Tuesday
March 31, 2015

Homework Help: chem

Posted by ashley on Sunday, March 23, 2008 at 2:24pm.

mass of mg- .28
mass of o- .41

calculate the moles of mg and o

what is the simples whole number ratio of the moles of mg to the moles of o? round off to the nearest whole number ratio. use this mole ratio to write the empirical formula.

the molecular mass of magnesium oxide is found to be 40.3 g/mol. what isthe molecular formula?

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