Question: 17. A water sample has the following analysis: cation quantity (mg/L) Ca +2 104 Mg +2 38 Na + 19 Calculate the hardness provided by

17. A water sample has the following analysis:

cation quantity (mg/L)
Ca+2
104
Mg+2
38
Na+
19

Calculate the hardness provided by Ca+2 as mg/L of CaCO3

a.220 mg/L CaCO3

b.260 mg/L CaCO3

c.104 mg/L CaCO3

d.270 mg/L CaCO3

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