2. A reaction between a 50.0 ml solution containing Ca²+ ions with Na₂CO3 aqueous solution had resulted a formation of w

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2 A Reaction Between A 50 0 Ml Solution Containing Ca Ions With Na Co3 Aqueous Solution Had Resulted A Formation Of W 1 (17.22 KiB) Viewed 33 times

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2. A reaction between a 50.0 ml solution containing Ca²+ ions with Na₂CO3 aqueous solution had resulted a formation of white insoluble precipitates, CaCO3. After filtration, the white precipitates were washed and dried up. The final mass of CaCO3 was equivalent to 345.43mg. I. Write the general equation for the reaction. II. Calculate the original concentration of Ca²+ that is present in the solution.