LO 1.20 - The student can design, and/or interpret data from, an experiment that uses titration to determine the concentration of an analyte in a solution.

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LO 1.20 - The student can design, and/or interpret data from, an experiment that uses titration to determine the concentration of an analyte in a solution.

Volumetric Analysis Using titration of a solution with known concentration to determine information about a different solution of unknown concentration.

Sample Problems 1. A flask contains a solution with an unknown amount of HCl. This solution is titrated with 0.207 M NaOH. It takes 4.47 mL NaOH to complete the reaction. What is the mass of the HCl?

What volume of 0.250 M HNO3 reacts with 42.4 mL of 0.150 M Na2CO3 ? 2. Write the equation for the reaction between nitric acid and sodium carbonate. What volume of 0.250 M HNO3 reacts with 42.4 mL of 0.150 M Na2CO3 ?

3. A solution of hydrogen peroxide is titrated with a solution of potassium permanganate. The reaction is: 5 H2O2 (aq) + 2 KMnO4 (aq) + 3 H2SO4 (aq)  5 O2 (g) + 2 MnSO4 (aq) + K2SO4 (aq) + 8 H2O(l) It requires 46.9 mL of 0.145 M KMnO4 to titrate 20.0 g of the solution of hydrogen peroxide. What is the mass percentage of H2O2 in the hydrogen peroxide solution?