Consider an Acetate Buffer, Initially at the Same PH as Its

question 68

Multiple Choice

Consider an acetate buffer, initially at the same pH as its pK_a (4.76) . When sodium hydroxide (NaOH) is mixed with this buffer, the:

• A) pH remains constant.
• B) pH rises more than if an equal amount of NaOH is added to an acetate buffer initially at pH 6.76.
• C) pH rises more than if an equal amount of NaOH is added to unbuffered water at pH 4.76.
• D) ratio of acetic acid to sodium acetate in the buffer falls.
• E) sodium acetate formed precipitates because it is less soluble than acetic acid.

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Definitions:

Low Pressure

An area where the atmospheric pressure is lower than that of the surrounding regions, often leading to poor weather conditions.

Water Vapor

The gaseous phase of water, present in the atmosphere, which plays a critical role in the Earth's weather and climate systems.

Condensation

The process by which a vapor becomes a liquid; the opposite of evaporation.

Liquid Water

The state of water that is neither solid (ice) nor gas (vapor), commonly found in rivers, lakes, and oceans.