What Is the Concentration of H₃O⁺ and ^-OH in Pure

question 36

Multiple Choice

What is the concentration of H₃O⁺ and ^-OH in pure water at room temperature?

• A) 1.0  10 ^{ 14} M
• B) 1.0  10 ^{ 7} M
• C) 1.0 M
• D) 1.0  10⁷ M
• E) 1.0  10¹⁴ M

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Definitions:

Terminal Buttons

The small knobs at the end of an axon that release chemicals called neurotransmitters into the synapse, thereby transmitting nerve impulses to another nerve cell.

Cell Membrane

The thin, flexible barrier that surrounds cells, controlling the movement of substances in and out of the cell.

Action Potential

A short-lasting event in which the electrical membrane potential of a cell rapidly rises and falls, facilitating neural communication.

Absolute Refractory Period

A phase during the action potential of a neuron in which it is impossible for the neuron to fire again, regardless of the strength of any incoming stimuli.