A water was tested for water hardness. A 50.00 mL aliquot was prepared andbuffered to pH 10.0, it required 23.55 mL of 0.0250 MEDTA. 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 CaCO).a. 727.2 ppmb. 1179 ppmc. Insufficient datad. 380.2 ppmCalculate the calcium hardness of the water (expressed in ppm CaCQ:).a. Insufficient datab. 1179 ppmc. 727.2 ppmd. 380.2 ppmCalculate the magnesium hardness of the water (expressed in ppm MECO:)a. 727.2 ppmb. Insufficient datac. 380.2 ppmd. 1179 ppm

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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 CACQ). a. 727.2 ppm b. 1179 ppm c. Insufficient data d. 380.2 ppm Calculate the calcium hardness of the water (expressed in ppm CACQ,). a. Insufficient data b. 1179 ppm c. 727.2 ppm d. 380.2 ppm Calculate the magnesium hardness of the water (expressed in ppm MgCQ.) a. 727.2 ppm b. Insufficient data c. 380.2 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 CACQ). a. 727.2 ppm b. 1179 ppm c. Insufficient data d. 380.2 ppm Calculate the calcium hardness of the water (expressed in ppm CACQ,). a. Insufficient data b. 1179 ppm c. 727.2 ppm d. 380.2 ppm Calculate the magnesium hardness of the water (expressed in ppm MgCQ.) a. 727.2 ppm b. Insufficient data c. 380.2 ppm d. 1179 ppm

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

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 MEDTA. 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 CaCO).
a. 727.2 ppm
b. 1179 ppm
c. Insufficient data
d. 380.2 ppm
Calculate the calcium hardness of the water (expressed in ppm CaCQ:).
a. Insufficient data
b. 1179 ppm
c. 727.2 ppm
d. 380.2 ppm
Calculate the magnesium hardness of the water (expressed in ppm MECO:)
a. 727.2 ppm
b. Insufficient data
c. 380.2 ppm
d. 1179 ppm

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