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Determine the percent MgCO3 in a sample of just MgCO3 and MgO?

Submitted by StephanieLynn on Mon, 04/26/2010 - 12:52

You are given a sample of MgO that contains some MgCO3 as a result of being exposed to CO2 in the air.  What experiment could you perform to determine the % by mass of MgCO3 in the sample?

what experiments do you think you can come up with?

I have to do this same experiment. Must be Sweany huh? Anyway, could it be so simple that you could weigh the sample, then add water and heat it up, then weigh it after?

Or maybe add HCL, which makes MgCl2, H2O, and CO2