A 100-mL sample of hard water is titrated with the EDTA solution in Problem 2. The same amount of Mg^2 is added as previously, and the volume of EDTA required is 22.44 mL a. What volume of EDTA is used in titrating the Ca^2 in the hard water? mL b. How many moles of EDTA are there in that volume? moles c. How many moles of Ca^2 are there in the 100 mL of water? moles d. If the Ca^2 comes from CaCO3, how many moles of CaCO3 are there in one liter of the water? How many grams CaCOpcr litcr?
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