Respuesta :

Answer:

                     Answers are in the examples of Conjugate Base.

Explanation:

                    Conjugate Acid is a specie which is formed when a base abstract or picks a proton (H⁺).

Example:

               NH₃  +  HCl   →  NH₄⁺  +  Cl⁻

In this example Ammonia (NH₃) is a base which after reacting with acid forms the conjugate acid (NH₄⁺).

                    Conjugate Base is a specie which is formed when an acid looses / donates its proton (H⁺) to a base.

Example:

(a)

               B  +  HNO₃   →  BH⁺  +  NO₃⁻

In this example HNO₃ (Nitric Acid) is the acid which on reaction with base forms the conjugate base ( NO₃⁻) called nitrate.

(b)

               B  +  H₂SO₄   →  BH⁺  +  HSO₄⁻

               B  +  HSO₄⁻   →   BH⁺  +  SO₄⁻

In this example HSO₄ (Sulfuric Acid) is the acid which on reaction with base forms the conjugate bases ( HSO₄⁻ and SO₄⁻) respectively.

(c)

               B  +  H₂S   →  BH⁺  +  HS⁻

In this example HS (Hydrogen Sulfide) is the acid which on reaction with base forms the conjugate base HS⁻.

(c)

               B  +  HCOOH   →  BH⁺  +  HCOO⁻

In this example HCOOH (Formic Acid) is the acid which on reaction with base forms the conjugate base HCOO⁻ called formate ion.

The conjugate bases of the following acids are as follows:

  1. HNO2 = NO2-
  2. H2SO4 = HSO4-
  3. H2S = HS-
  4. HCN = CN-
  5. HCOOH = COOH-

CONJUGATE BASE:

  • According to Bronsted-Lowry definition, a conjugate base is formed when a proton is removed from an acid while a conjugate acid is formed when a proton is added to a base.

  • An acid is known to donate a proton when dissolved in an aqueous solution, the resulting anion formed is called a conjugate base.

  • The conjugate bases formed by the following acids when they lose a proton is as follows:
  1. HNO2 = NO2-
  2. H2SO4 = HSO4-
  3. H2S = HS-
  4. HCN = CN-
  5. HCOOH = COOH-

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