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Classify each of these compounds as an arrhenius acid, an arrhenius base, or neither.
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17. Acid and Base Equilibrium
Arrhenius Acids and Bases
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According to the Arrhenius definition, which ions are most abundant in an aqueous solution of a base?
A
Hydroxide ions,
B
Chloride ions,
C
Sodium ions,
D
Hydronium ions,
Verified step by step guidance1
Recall the Arrhenius definition of a base: a substance that increases the concentration of hydroxide ions (OH\textsuperscript{\textminus}) when dissolved in water.
Identify that in an aqueous solution of a base, the species that increase in concentration are hydroxide ions (OH\textsuperscript{\textminus}).
Recognize that other ions such as chloride ions (Cl\textsuperscript{\textminus}) and sodium ions (Na\textsuperscript{+}) may be present if the base is a salt like sodium hydroxide, but they are not responsible for the basicity.
Understand that hydronium ions (H\textsubscript{3}O\textsuperscript{+}) are characteristic of acidic solutions, so they are not abundant in a basic solution.
Conclude that according to the Arrhenius definition, the most abundant ions indicating a base in aqueous solution are hydroxide ions (OH\textsuperscript{\textminus}).
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