Which of These Aqueous Solutions Has the Lowest PH

question 2

Multiple Choice

Which of these aqueous solutions has the lowest pH?

• A)0.100 M NaOH
• B)0.100 M Na₂O
• C)0.100 M Na₃N
• D)all of these solutions have the same pH due to the leveling effect
• E)these all are solutions of weak bases, so K_b values are needed in order to decide

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Definitions:

Extracellular

Outside the cell.

Osmotic Pressure

Force required to prevent the movement of water across a selectively permeable membrane.

Na+

A symbol representing sodium ions, which are essential electrolytes in the body, playing key roles in nerve impulse conduction, muscle contraction, and fluid balance.

Plasma

The liquid component of blood in which blood cells are suspended, consisting largely of water, proteins, and dissolved substances.