The K_a for Formic Acid Is 1

question 93

Multiple Choice

The K_a for formic acid is 1.8 × 10^-4. Which of the following statements best describes the pH of a 0.0010 M solution of formic acid?

• A)The pH is greater than 0 but less than 3.
• B)The pH is exactly 3.
• C)The pH is greater than 3 but less than 7.
• D)The pH is exactly 7.
• E)The pH is greater than 7 but less than 11.

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Definitions:

Acetylcholine

A neurotransmitter important for learning and memory, also involved in muscle activation.

GABA

Gamma-aminobutyric acid, a neurotransmitter in the brain that plays a key role in reducing neuronal excitability and is involved in regulating anxiety.

Neurotransmitters

Chemical messengers that transmit signals across a chemical synapse, from one neuron to another target neuron.

Central Nervous System

The part of the nervous system consisting of the brain and spinal cord, responsible for processing and sending out nerve signals.