A 100 ml fraction of that solution is added to a 250 ml


Talc is a magnesium containing mineral commonly found in soapstone. You have a 15.0g sample of soapstone and you completely dissolve in solution. A 10.0 mL fraction of that solution is added to a 250 mL volumetric flask and diluted to the mark with 8-hydroxyquinoline solution to form a magnesium complex which precipitates (reaction shown below). If you collect 631 mg of complex, what was the % mass of talc in the soapstone?

Mg2++ 2C9H7NO --> Complex + 2H+

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Chemistry: A 100 ml fraction of that solution is added to a 250 ml
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