The PH of a Solution Is Raised from 3 to 5

question 90

Multiple Choice

The pH of a solution is raised from 3 to 5. Which statement is false?

• A) The final [OH^-] (at pH = 5) is 10^-9 M.
• B) The [H⁺] decreases by a factor of 20.
• C) The initial solution could be 0.001 M HNO₃.
• D) The pOH decreases from 11 to 9.
• E) The initial [H⁺] (at pH = 3) is 10^-3 M.

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Definitions:

Neurons

Neurons are the basic working units of the brain and nervous system, responsible for receiving, processing, and transmitting information through electrical and chemical signals.

Cell Body

The spherical part of a neuron that contains the nucleus and connects to the dendrites and axon, critical for processing information.

Axon

A long, slender projection of a neuron that conducts electrical impulses away from the neuron's cell body to other neurons, muscles, or glands.

Dendrites

The branched extensions of a neuron that receive signals from other neurons and convey them toward the cell body.