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22-02-2024
Chemistry

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From the water analyses (given in mg/L as CaCO₃) presented below:

CO₂: 10
Ca2+: 120
Mg2+: 30
HCO₃-: 70
Determine total, carbonate and non-carbonate hardness (in mg/L CaCO₃):
a) 80 mg/L
b) 150 mg/L
c) 70 mg/L
d) 120 mg/L

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