Calculate the PH of a Buffer Prepared by Dissolving 0

question 33

Multiple Choice

Calculate the pH of a buffer prepared by dissolving 0.10 mol of NH₄Cl in 1.00 L of 0.15 M NH₃. K _b = 1.8×10 ^{- 5} for NH₃.

• A) 9.43
• B) 4.56
• C) 11.34
• D) 2.72
• E) 4.74

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Definitions:

Axon

A long, slender projection of a nerve cell that typically conducts electrical impulses away from the neuron's cell body.

Negatively Charged Ions

Ions that carry one or more negative electric charges, known to affect environmental and physical health, often found abundantly near waterfalls, forests, and after thunderstorms.

Neuron

A specialized, electrically excitable cell that processes and transmits information through electrical and chemical signals.

Resting Potential

The electrical charge difference across the neural membrane when a neuron is not actively transmitting a signal, typically around -70 millivolts.