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in Ionic Equilibrium by (47.5k points)
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Indentify the conjugate acid base pair for the following reaction in aqueous solution.

1. HS- (aq) + HF ⇌ F- (aq) + H2S (aq) 

2. HPO2-4 + SO32- PO43- + HSO3-

3. NH4+ + CO2-3 ⇌ NH3 + HCO3-

1 Answer

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Best answer

  • HF and F- , HS- and H2S are two conjugate acid – base pairs. 

• F- is the conjugate base of the acid HF (or) HF is the conjugate acid of F-

• H2S is the conjugate acid of HS- (or) HS- is the conjugate base of H2S.

2.

  • HPO42- and PO43- , SO32- and HSO3-are two conjugate acid – base pairs.
  • PO43- is the conjugate base of the acid HPO42- (or) HPO42- is the conjugate acid of PO4

•HSO3- is the conjugate acid of SO32- (or) SO32- is the conjugate base of HSO3-.

3.

  • NH+ and NH3, CO32- and HCO3- are two conjugate acid – base pairs. 

• HCO3- is the conjugate of acid CO32- (or) CO32- is the conjugate bases of HCO3-

• NH3 is the conjugate base of NH4+ (or) NH4+ is the conjugate acid of NH3 .

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