A 0.5118g sample of CaCO3 is dissolved in a 12 M HCl and the resulting solution is diluted to 250.0mL in a volumetric flask.
How many moles of CaCO3 are used (formula mass=100.1)?
What is the molarity of the Ca²? in the 250mL solution?
How many moles of Ca²? are in a 25.00mL aliquot of the solution in 1b?