The Principal Reason for the Extremely Low Solubility of NaCl

question 157

Multiple Choice

The principal reason for the extremely low solubility of NaCl in benzene (C₆H₆) is the ________.

• A)strong solvent-solvent interactions
• B)hydrogen bonding in C₆H₆
• C)strength of the covalent bond in NaCl
• D)weak solvation of Na⁺ and Cl^- by C₆H₆
• E)increased disorder due to mixing of solute and solvent

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Definitions:

Pacemaker

A device or biological mechanism that sets the pace or rhythm for certain processes, especially the heart's rhythm.

AV Node

The atrioventricular node, a crucial part of the heart's electrical conduction system, controlling the heart rate by delaying the transmission of electrical impulses from the atria to the ventricles.

Interventricular Septum

The thick wall separating the lower chambers (ventricles) of the heart, preventing the mixing of oxygenated and deoxygenated blood.

AV Bundle

The bundle of His, a collection of heart muscle cells specialized for electrical conduction that transmits the electrical impulses from the AV node to the point of the apex of the fascicular branches.