Multiple Choice
Which ions are formed from the dissociation of the following compound?
17. Acid and Base Equilibrium
Arrhenius Acids and Bases
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Out of the following compounds, which can only be an Arrhenius acid?
a) NaCl
b) Sr(OH)2
c) H2O
d) CH3COOH
e) NH3
A
NaCl
B
Sr(OH)2
C
H2O
D
CH3COOH
E
NH3
Verified step by step guidance1
Understand the definition of an Arrhenius acid: An Arrhenius acid is a substance that increases the concentration of hydrogen ions (H⁺) when dissolved in water.
Examine each compound to determine if it can release H⁺ ions in water: a) NaCl, b) Sr(OH)₂, c) H₂O, d) CH₃COOH, e) NH₃.
NaCl is a salt and does not release H⁺ ions in water, so it cannot be an Arrhenius acid.
Sr(OH)₂ is a base that releases OH⁻ ions in water, not H⁺ ions, so it cannot be an Arrhenius acid.
CH₃COOH, known as acetic acid, releases H⁺ ions when dissolved in water, fitting the definition of an Arrhenius acid.
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