A water was tested for water hardness. A 50.00 mL aliquot was prepared and buffered to pH 10.0, it required 23.55 mL of 0.0250 M EDTA. A second aliquot, prepared with NaOH, was titrated with 14.53 mL of the same EDTA titrant. Calculate the total hardness of the water (expressed in ppm CaCO₃). a. 2 ppm b. 1179 ppm c. Insufficient data d. 2 ppm Calculate the calcium hardness of the water (expressed in ppm CaCO₃). a. Insufficient data b. 1179 ppm c. 2 ppm d. 2 ppm Calculate the magnesium hardness of the water (expressed in ppm MgCO₃) a. 2 ppm b. Insufficient data c. 2 ppm d. 1179 ppm
A water was tested for water hardness. A 50.00 mL aliquot was prepared and buffered to pH 10.0, it required 23.55 mL of 0.0250 M EDTA. A second aliquot, prepared with NaOH, was titrated with 14.53 mL of the same EDTA titrant. Calculate the total hardness of the water (expressed in ppm CaCO₃). a. 2 ppm b. 1179 ppm c. Insufficient data d. 2 ppm Calculate the calcium hardness of the water (expressed in ppm CaCO₃). a. Insufficient data b. 1179 ppm c. 2 ppm d. 2 ppm Calculate the magnesium hardness of the water (expressed in ppm MgCO₃) a. 2 ppm b. Insufficient data c. 2 ppm d. 1179 ppm
Chapter17: Complexation And Precipitation Reactions And Titrations
Section: Chapter Questions
Problem 17.42QAP
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A water was tested for water hardness. A 50.00 mL aliquot was prepared and buffered to pH 10.0, it required 23.55 mL of 0.0250 M EDTA. A second aliquot, prepared with NaOH, was titrated with 14.53 mL of the same EDTA titrant.
Calculate the total hardness of the water (expressed in ppm CaCO₃).
a. 2 ppm
b. 1179 ppm
c. Insufficient data
d. 2 ppm
Calculate the calcium hardness of the water (expressed in ppm CaCO₃).
a. Insufficient data
b. 1179 ppm
c. 2 ppm
d. 2 ppm
Calculate the magnesium hardness of the water (expressed in ppm MgCO₃)
a. 2 ppm
b. Insufficient data
c. 2 ppm
d. 1179 ppm
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