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If water contains 32.3 mg/L Mg and 40.9 mg/L of Ca What is the contribution of Mg to the water hardness expressed as a concentration

If water contains 32.3 mg/L Mg and 40.9 mg/L of Ca What is the contribution of Mg to the water hardness expressed as a concentration of CaCO3? Answer mg/L What is the contribution of Ca to the water hardness expressed as a concentration of CaCO3? Answer mg/L What is the hardness of the water? Answer mg/L

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