Question: please upload correct answer...the last is wrong ..I will report if u give the same.. The carbonic acid content of a water sample must be

please upload correct answer...the last is wrong ..I will report if u give the same..

please upload correct answer...the last is wrong ..I will report if u

The carbonic acid content of a water sample must be considered to determine the reagent requirements for the lime soda softening process. Given: pH = 7.1 Total Alkalinity = 203 mg/L "as CaCO3" Total Hardness = 297 mg/L "as CaCO3" Calcium Hardness = 235 mg/L "as CaCO3" = Calculate the concentration of carbonic acid H2CO3 in moles per liter (i.e., M) using the data provided. Then enter the numerical value for your answer. Between 0.0008 and 0.0006

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