Question

For each reaction, identify the Bronsted-Lowry acid, the Bronsted-Lowry base, the conjugate acid, and the conjugate base.

A) HI(aq)+H2O(l)?H3O+(aq)+I?(aq)
B) CH3NH2(aq)+H2O(l)?CH3NH3+(aq)+OH?(aq)
C) CO32?(aq)+H2O(l)?HCO3?(aq)+OH?(aq)
D) H2CO3(aq)+H2O(l)?H3O+(aq)+HCO3?(aq)

Answer 1

In Brønsted-Lowry acid-base theory, acids donate protons and bases accept protons. For each given reaction, the acid, base, conjugate base, and conjugate acid are identified based on which species donates or accepts protons during the reaction.

Step-by-step explanation:

In Brønsted-Lowry acid-base theory, an acid is a substance that can donate a proton (H+), and a base is a substance that can accept a proton. Here are the entities identified for each reaction:

• A) HI(aq) + H2O(l) → H3O+(aq) + I−(aq)
  Brønsted-Lowry Acid: HI
  Conjugate Base: I−
  Brønsted-Lowry Base: H2O
  Conjugate Acid: H3O+
• B) CH3NH2(aq) + H2O(l) → CH3NH3+(aq) + OH−(aq)
  Brønsted-Lowry Acid: H2O
  Conjugate Base: OH−
  Brønsted-Lowry Base: CH3NH2
  Conjugate Acid: CH3NH3+
• C) CO32−(aq) + H2O(l) → HCO3−(aq) + OH−(aq)
  Brønsted-Lowry Acid: H2O
  Conjugate Base: OH−
  Brønsted-Lowry Base: CO32−
  Conjugate Acid: HCO3−
• D) H2CO3(aq) + H2O(l) → H3O+(aq) + HCO3−(aq)
  Brønsted-Lowry Acid: H2CO3
  Conjugate Base: HCO3−
  Brønsted-Lowry Base: H2O
  Conjugate Acid: H3O+