Answer:
See figure 1
Explanation:
If we want to find the acid and the Brønsted-Lowry base, we must remember the definition for each of these molecules:
-) Acid: hydrogen donor
-) Base: hydrogen acceptor
In the caffeine structure, we have several atoms of nitrogen. These nitrogen atoms have the ability to accept hydronium ions ([tex]H^+[/tex]). Therefore the caffeine molecule will be the base since it can accept
If caffeine is the base, the water must be the acid. So, the water in this reaction donated a hydronium ion.
Thus, caffeine is the base and water the acid. (See figure 1)
In the reaction of caffeine with water, H₂O and C₈H₁₁N₄O₂⁺ are Brønsted-Lowry acids while C₈H₁₀N₄O₂ and OH⁻ are Brønsted-Lowry bases.
Caffeine reacts with water in an acid-base reaction. We want to identify acids and bases according to Brønsted-Lowry theory.
It is a theory that classifies substances as acids and bases according to their behavior in a reaction.
The chemical equation for the acid-base reaction between caffeine and water is:
C₈H₁₀N₄O₂ + H₂O ⇄ C₈H₁₁N₄O₂⁺ + OH⁻
C₈H₁₀N₄O₂ accepts a H⁺ so it is a base while H₂O donates a H⁺ so it is an acid. This reaction is reversible, so we can also state that C₈H₁₁N₄O₂⁺ is an acid because it donates a H⁺ and OH⁻ is a base because it accepts a H⁺.
In the reaction of caffeine with water, H₂O and C₈H₁₁N₄O₂⁺ are Brønsted-Lowry acids while C₈H₁₀N₄O₂ and OH⁻ are Brønsted-Lowry bases.
Learn more about Brønsted-Lowry acid base theory here: https://brainly.com/question/7256753
