As mentioned above, I am stuck on a titration word problem and can't seem to figure out what to do! I am hoping that maybe someone can help me please. thank you!
1. The active component in one type of calcium dietary supplement is calcium carbonate. A 1.2450 g tablet of the supplement is added to 50.00 mL of 0.5000 M HCl(aq) and allowed to react. After completion of the reaction, the excess HCl(aq) requires 40.20 mL of 0.2184 M NaOH(aq) for its titration to the equivalence point. What is the calcium content of the tablet, expressed in milligrams of Ca2+?