Chemistry, 20.07.2021 22:10 tony4561

Once we know the amount of EDTA present when the color change occurs, we can determine the concentration of calcium present in the tap water by converting the volume of EDTA to A. grams and then multiple that number by 40.01
grams.

B. moles and then take that number and divide it by
the initial volume of tap water in liters.

C. moles and then multiply that number by 2 and
divide it by the molar mass of calcium.

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Once we know the amount of EDTA present when the color change occurs, we can determine the concentra...