One Method of Determining the Concentration of Hydrogen Peroxide (H₂O₂) $\rarr$

question 42

Multiple Choice

One method of determining the concentration of hydrogen peroxide (H₂O₂) in a solution is through titration with the iodide ion. The net ionic equation for this reaction is H₂O₂ + 2I^- +2H⁺ $\rarr$ I₂ + 2H₂O
A 50.00 mL sample of a hydrogen peroxide solution is found to react completely with 37.12 mL of a 0.1500 M KI solution. What is the concentration of hydrogen peroxide in the sample

• A) 5.568 * 10^-2 M
• B) 0.2227 M
• C) 0.1010 M
• D) 0.4041 M
• E) 0.1114 M

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