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May 23, 2015

Homework Help: chemistry

Posted by saddee on Tuesday, April 28, 2009 at 10:53pm.

A 0.5215 gram sample of CaCO3 is dissolved in 12M HCl and the resulting solution is diluted to 250.0 mL in a volumetric flask.

How many moles of CaCO3 are used?


What is the molarity of the Ca2+ in the 250 mL of solution?
How many moles of Ca2+ ae in a 25.0 mL aliquot of the unknown solution from question 2?

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