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

question 53

Multiple Choice

A 5.000 mL aqueous sample containing hydrogen peroxide was diluted to 25 mL and analyzed by titration with permanganate:
2 MnO₄^-(aq) + 5 H₂O₂(aq) + 6 H⁺(aq) → 5 O₂(g) + 2 Mn²⁺(aq) + 8 H₂O(l)
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)0.375 M
• D)0.0599 M

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Definitions:

Depth Perception

The visual ability to perceive the world in three dimensions and the distance of an object.

Retinal Disparity

The slight difference in the two retinal images due to the angle from which each eye views an object, contributing to depth perception.

Gestalt

An organized whole. Gestalt psychologists emphasized our tendency to integrate pieces of information into meaningful wholes.

Organized Whole

Organized whole refers to a concept in Gestalt psychology that emphasizes seeing patterns and objects as unified wholes rather than merely the sum of their parts.