A solution containing 10.mmol of CO₃²⁻and 5.0 mmol of HCO₃−is titrated with 1.1 M HCl.What volume of HCl must be added to reach the first equivalence point? (1 mmol = 0.001 mol)

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Quizplus · Accepted Answer

To reach the first equivalence point, all CO₃²⁻ will be converted to HCO₃⁻. This requires 10 mmol of HCl. Using the concentration of HCl (1.1 M), the volume needed is 10 mmol / 1.1 M = 9.1 mL.

A Solution Containing 10