A solution of Na2CO3 is prepared by dissolving 0.997 g of the solid in approximately 30 mL of water. How many moles of Na2CO3 does this solution contain? Suppose the Na2CO3 solution described previously is added to a solution that contains excess CaCl2? What is the maximum number of moles of solid CaCO3 that can form in the resulting precipitation reaction? What is the maximum mass (in grams) of CaCO3 that could form in the precipitation reaction described previously?