The Ionization Constant of Water at a Temperature Above 25°C

question 15

Multiple Choice

The ionization constant of water at a temperature above 25°C is 3.5 × 10^-14.What is the pH of pure water at this temperature?
2H₂O(l)
H₃O⁺(aq) + OH^-(aq)

• A)7.73
• B)5.53
• C)6.73
• D)13.49
• E)7.00

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Definitions:

T Tubule

T Tubules, or transverse tubules, are extensions of the cell membrane that penetrate into the center of skeletal and cardiac muscle cells, facilitating the rapid transmission of signals.

Triad

Two terminal cisternae and a T tubule between them.

Mitochondria

Organelles found in large numbers in most cells, where the biochemical processes of respiration and energy production occur.

Skeletal Muscle Fibers

The long, cylindrical cells that make up skeletal muscles, responsible for voluntary movements through contraction.