A 250 ML Sample of 0

question 8

Multiple Choice

A 25.0 mL sample of 0.723 M HClO₄ is titrated with a 0.27 M KOH solution. The H₃O⁺ concentration after the addition of 80.0 mL of KOH is ________ M.

• A)0.4
• B)1 × 10^-7
• C)0.7
• D)3 × 10^-13
• E)4 × 10^-2

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Definitions:

Brachiocephalic Vein

A large vein in the upper chest that forms from the union of the internal jugular and subclavian veins and carries blood to the heart.

Internal Jugular

A major vein located in the neck, it collects blood from the brain, the superficial parts of the face, and the neck, and conveys it toward the heart.

Subclavian Veins

Large veins on either side of the body that receive blood from the arm and chest wall, transporting it back to the heart.

Embolism

Obstruction or occlusion of a vessel by a transported clot, a mass of bacteria, or other foreign material.