When 50.00 mL of tap water was titrated with 0.00500 M EDTA, 13.75 mL were required to reach the Eriochrome T endpoint. Calculate the “hardness” of this water. The EDTA will react with both the [Ca2+] + [Mg2+] in the water. The units of hardness are expressed as mg CaCO3/L (assume all moles are Ca2+, which is therefore equal to moles CaCO3)
When 50.00 mL of tap water was titrated with 0.00500 M EDTA, 13.75 mL were required to reach the Eriochrome T endpoint. Calculate the “hardness” of this water. The EDTA will react with both the [Ca2+] + [Mg2+] in the water. The units of hardness are expressed as mg CaCO3/L (assume all moles are Ca2+, which is therefore equal to moles CaCO3)
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter14: Equilibria In Acid-base Solutions
Section: Chapter Questions
Problem 74QAP: Fifty cm3 of 1.000 M nitrous acid is titrated with 0.850 M NaOH. What is the pH of the solution (a)...
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When 50.00 mL of tap water was titrated with 0.00500 M
EDTA, 13.75 mL were required to reach the Eriochrome T
endpoint. Calculate the “hardness” of this water. The EDTA
will react with both the [Ca2+] + [Mg2+] in the water. The
units of hardness are expressed as mg CaCO3/L (assume all
moles are Ca2+, which is therefore equal to moles CaCO3)
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