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Multiple Choice
Which of the following compounds is considered the universal recipient in acid-base reactions?
A
Hydronium ion (H3O+)
B
Water (H2O)
C
Sodium hydroxide (NaOH)
D
Ammonia (NH3)
Verified step by step guidance
1
Understand the concept of a universal recipient in acid-base reactions. A universal recipient is a species that can accept protons from a wide range of acids.
Recall the Brønsted-Lowry acid-base theory, which defines acids as proton donors and bases as proton acceptors.
Consider the hydronium ion (H3O+). It is formed when water (H2O) accepts a proton (H+), making it a strong acid and a common proton donor.
Evaluate the other options: Water (H2O) can act as both an acid and a base, but it is not a universal recipient. Sodium hydroxide (NaOH) is a strong base, typically donating hydroxide ions (OH-). Ammonia (NH3) is a weak base, accepting protons but not universally.
Conclude that the hydronium ion (H3O+) is the universal recipient in acid-base reactions because it readily accepts protons from a variety of acids.