magnesium (mg/L)equivalent weight of magnesium9 mg/L12.15x = 37.1 mg/L Mg as CaCO3magnesium hardness (mg/L) as CaCO,equivalent weight of CaCO,x mg/L50.045Now, total hardness can be calculated using Equation 21.3:Total hardness (mg/L) = 69.9 mg/L + 37.1 mg/L= 107 mg/L as CaCO3Determine the total hardness as ppm CaCO3 of a sample of water that has calcium content of 56mg/L and magnesium content of 4.5 mg/L.D

We have to find the total hardness as ppm (mg/L) CaCO3 of a sample of water. Given - Calcium content…

Answered: Determine the total hardness as ppm…

Determine the total hardness as ppm CaCO3 of a sample of water that has calcium content of 56 mg/L and magnesium content of 4.5 mg/L.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 57QRT

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

magnesium (mg/L)
equivalent weight of magnesium
9 mg/L
12.15
x = 37.1 mg/L Mg as CaCO3
magnesium hardness (mg/L) as CaCO,
equivalent weight of CaCO,
x mg/L
50.045
Now, total hardness can be calculated using Equation 21.3:
Total hardness (mg/L) = 69.9 mg/L + 37.1 mg/L
= 107 mg/L as CaCO3
Determine the total hardness as ppm CaCO3 of a sample of water that has calcium content of 56
mg/L and magnesium content of 4.5 mg/L.
D

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