Open Question
Classify each of these compounds as an arrhenius acid, an arrhenius base, or neither.
630
views
17. Acid and Base Equilibrium
Arrhenius Acids and Bases
Multiple Choice
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\(\textsuperscript{\textminus}\)).
Related Videos
Related Practice
