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15240672380's Question
Chemistry
Posted 5 months ago

For each of the following reactions, identify the Brønsted-Lowry acid and base on the reactant side of the equation, and the conjugate acid and conjugate base on the product side.
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Answer from Sia
Posted 5 months ago
Solution
1
Identify the Brønsted-Lowry acid and base in the reactants: According to the Brønsted-Lowry theory, an acid is a substance that can donate a proton (H⁺), and a base is a substance that can accept a proton
2
Identify the conjugate acid and conjugate base in the products: After a Brønsted-Lowry acid donates a proton, it becomes a conjugate base. Similarly, after a Brønsted-Lowry base accepts a proton, it becomes a conjugate acid
3
Apply the concept to the given reaction: In the reaction between NH₄⁺ (ammonium) and CN⁻ (cyanide), NH₄⁺ donates a proton to become NH₃ (ammonia), making it the acid, and CN⁻ accepts a proton to become HCN (hydrogen cyanide), making it the base. Therefore, NH₃ is the conjugate base of NH₄⁺, and HCN is the conjugate acid of CN⁻
Answer
Acid: NH₄⁺
 Base: CN⁻
Conjugate Base: NH₃
 Conjugate Acid: HCN 
∻Key Concept∻
 Brønsted-Lowry acids and bases 
∻Explanation∻
 An acid donates a proton to become a conjugate base, and a base accepts a proton to become a conjugate acid. 

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