Stoichiometry Study Question (p. 229 #109)
CaCO3 (s) + 2 HCl (aq)  CaCl2(aq) + CO2 (g) + H2O (l)
(a) If 2.56 grams of CaCO3 (s) are added to 250. milliliters of a 0.125-molar solution of HCl, what is the
maximum molar yield of CO2(g)?
(b) When all of the limiting reagent has been consumed in (a), does any calcium carbonate remain? What
mass of excess reagent does remain?
(c) What is the mass of the CaCl2 produced in (a)?
(d) What is the value of [Ca2+] in the solution at the end of the experiment? (Assume that the volume of the
solution remains unchanged.)