A 175 ML Sample of an Acetic Acid (CH₃CO₂H)solution Required 29

question 20

Multiple Choice

A 17.5 mL sample of an acetic acid (CH₃CO₂H) solution required 29.6 mL of 0.250 M NaOH for neutralization.The concentration of acetic acid was ________ M.

• A)0.296
• B)0.423
• C)0.591
• D)0.105
• E)129.5

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Definitions:

Neutrons

Subatomic particles without an electric charge, found in the nucleus of an atom, contributing to the atom's mass.

Electrons

subatomic particles with a negative charge, found in all atoms and acting as the primary carrier of electricity in solids.

Valence Shells

The outermost electron shell of an atom that determines its bonding behavior with other atoms.

Cation

A particle with one or more units of positive charge, such as a hydrogen ion (H+) or calcium ion (Ca2+). Compare with anion.