Mathematics · Water Quality Parameters
In a water sample, the concentrations of Ca2+, Mg2+, and HCO3- are 100 mg/L, 36 mg/L, and 122 mg/L, respectively. The atomic masses are Ca = 40, Mg = 24, H = 1, C = 12, O = 16. What will be the total hardness and the temporary hardness in the water sample, expressed in mg/L as CaCO3?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1800 and 200, respectively
- 2500 and 100, respectively
- 3400 and 300, respectively
- 4400 and 100, respectively✓
Correct answer
400 and 100, respectively
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