What is the pH of a neutral solution at 25°C?
14
5
1
7
The Correct Answer is D
A. 14: A pH of 14 is strongly alkaline (basic), not neutral.
B. 5: pH 5 is mildly acidic, not neutral.
C. 1: pH 1 is strongly acidic, not neutral.
D. 7: At 25°C, a pH of 7 is neutral (equal hydrogen and hydroxide ion activity).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. High viscosity: Viscosity describes a fluid’s resistance to flow and is not the main reason water stabilizes temperature.
B. High density: Density affects mass per volume but does not explain water’s ability to absorb and release heat with little temperature change.
C. Low solubility: Water is actually a good solvent; solubility is unrelated to temperature buffering.
D. High specific heat: Water can absorb or release large amounts of heat with only small changes in temperature, making it effective for temperature regulation.
Correct Answer is C
Explanation
A. Carpi: Refers to the carpus (wrist) region, not the arm.
B. Tarsal: Refers to the tarsus (ankle/foot) region, not the arm.
C. Brachii: From brachium, meaning arm; used in anatomical terms like biceps brachii.
D. Nasal: Pertains to the nose, not the arm.
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