What Is the [CH₃CO₂^-]/[CH₃CO₂H] Ratio Necessary to Make a Buffer

question 11

Multiple Choice

What is the [CH₃CO₂^-]/[CH₃CO₂H] ratio necessary to make a buffer solution with a pH of 4.44? K_a = 1.8 × 10^-5 for CH₃CO₂H.

• A)0.50:1
• B)0.94:1
• C)1.1:1
• D)2.0:1

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Definitions:

Axillary Artery

A major blood vessel that carries oxygenated blood to the lateral aspect of the torso, armpit, and upper limb.

Median Cubital Artery

The median cubital artery is a superficial blood vessel in the elbow region that connects the cephalic and basilic veins and is often used for venipuncture.

Ulnar Artery

The artery that runs along the side of the forearm that is closest to the body when in an anatomical position, supplying blood to the forearm and hand.

Major Arterial Vessel

A major arterial vessel is a large artery that carries oxygen-rich blood away from the heart to various parts of the body.