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Old 03-20-2008, 01:15 AM
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Chemistry lab. Plzz help?

If I have an unknown sample that contains a certain amount of iron and I know the moles of the iron present. Do I muliple the moles times the molar mass to get the mass of the iron and then get the percent iron by dividing the mass of iron by the total mass of the sample?
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Old 03-20-2008, 01:17 AM
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ya, dat is EXACTly wat u shud do
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