A 5000 ML Aqueous Sample Containing Hydrogen Peroxide Was Diluted to to 25

question 38

Multiple Choice

A 5.000 mL aqueous sample containing hydrogen peroxide was diluted to 25 mL and analyzed by titration with permanganate: 2MnO₄^- + 5H₂O₂ + 6H⁺ → 5O₂ + 2Mn²⁺ + 8H₂O
The sample required 42.8 mL of 0.0175 M permanganate to reach the end point. What is the concentration of hydrogen peroxide in the original sample?

• A) 0.150 M
• B) 0.0748 M
• C) 0.374 M
• D) 0.0599 M

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Definitions:

Qualitative

Pertaining to or concerning the quality of something rather than its quantity, often used in research to describe non-numerical data.

Quantitative

Refers to research methodologies that involve the collection and analysis of numerical data, used to identify patterns, relationships, or to test hypotheses.

Quantitative

Concerned with, evaluating, or determined by the amount of something rather than its quality.

Qualitative

Pertaining to research methods focused on collecting and analyzing non-numerical data (e.g., text, video) to understand concepts, thoughts, or experiences.