Textbook Question
From this electrostatic potential map of the amino acid alanine, identify the most acidic hydrogens in the molecule:
14. Acids and Bases
Acid and Base Strength
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Which of the following aqueous species will contain mostly reactants?
A
CsOH
B
HNO3
C
Sr(OH)2
D
HClO3
E
Mg(OH)2
Verified step by step guidance1
Understand the concept of strong and weak acids and bases. Strong acids and bases dissociate completely in water, while weak acids and bases do not.
Identify the given species: CsOH, HNO3, Sr(OH)2, HClO3, and Mg(OH)2. Determine whether each is a strong or weak acid/base.
Recognize that CsOH and Sr(OH)2 are strong bases, and HNO3 and HClO3 are strong acids. These will dissociate completely in water, resulting in mostly products.
Mg(OH)2 is a weak base, meaning it does not dissociate completely in water. Therefore, the solution will contain mostly reactants.
Conclude that the species that will contain mostly reactants in an aqueous solution is Mg(OH)2, due to its weak base nature.
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