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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Definitions:

\(\left( - \frac { 1 } { 5 } \right) ^ { n }\)

This represents a mathematical expression indicating the nth power of \(-\frac{1}{5}\).

Arithmetic

A branch of mathematics dealing with numbers and basic operations such as addition, subtraction, multiplication, and division.

Common Difference

The constant difference between successive terms of an arithmetic sequence.

Sequence

A set of numbers arranged in a specific order, where each number is related to one or more numbers before/after it according to a specific rule.