To convert a base to its conjugate acid, you typically add a proton (H+ ion) to the base molecule. This protonation process forms the conjugate acid. For example, the base “OH-” becomes the conjugate acid “H2O” when a proton is added. The specific conjugate acid formed depends on the base and the reaction conditions.
Base to Conjugate Acid Calculator
Here is a table that summarizes the conversion of bases to their conjugate acids:
| Base | Conjugate Acid |
|---|---|
| OH- (Hydroxide) | H2O (Water) |
| NH3 (Ammonia) | NH4+ (Ammonium Ion) |
| HCO3- (Bicarbonate) | H2CO3 (Carbonic Acid) |
| CO3^2- (Carbonate) | HCO3- (Bicarbonate) |
| HPO4^2- (Hydrogen Phosphate) | H2PO4- (Dihydrogen Phosphate) |
| CN- (Cyanide) | HCN (Hydrogen Cyanide) |
| CH3NH2 (Methylamine) | CH3NH3+ (Methylammonium Ion) |
| C2H5O- (Ethoxide) | C2H5OH (Ethanol) |
| NH2- (Amide) | NH3 (Ammonia) |
| SO4^2- (Sulfate) | HSO4- (Hydrogen Sulfate) |
| HSO4- (Hydrogen Sulfate) | H2SO4 (Sulfuric Acid) |
| NO2- (Nitrite) | HNO2 (Nitrous Acid) |
| S2- (Sulfide) | HS- (Hydrogen Sulfide) |
| PO4^3- (Phosphate) | HPO4^2- (Hydrogen Phosphate) |
FAQs
How do you find the conjugate acid of a base? To find the conjugate acid of a base, you add a proton (H+) to the base molecule. This protonation process forms the conjugate acid.
Is H3O+/OH- a conjugate acid-base pair? Yes, H3O+ (hydronium ion) and OH- (hydroxide ion) form a conjugate acid-base pair. H3O+ is the conjugate acid of water (H2O), and OH- is the conjugate base of water.
What is the conjugate base of HCO3? The conjugate base of HCO3- (bicarbonate ion) is CO3^2- (carbonate ion).
What is the conjugate base of HNO3? The conjugate base of HNO3 (nitric acid) is NO3- (nitrate ion).
How do you determine the conjugate acid? To determine the conjugate acid, you identify the base in a chemical reaction and add a proton (H+) to it. The resulting molecule is the conjugate acid.
Is NH3 and NH4+ a conjugate acid-base pair? Yes, NH3 (ammonia) and NH4+ (ammonium ion) form a conjugate acid-base pair. NH4+ is the conjugate acid of NH3.
What is the conjugate acid for H2O? The conjugate acid of H2O (water) is H3O+ (hydronium ion).
Is NH3 a conjugate acid or base? NH3 (ammonia) is a base. Its conjugate acid is NH4+ (ammonium ion).
What is the conjugate base of NH3? The conjugate base of NH3 (ammonia) is NH2- (amide ion).
What is the conjugate base of H2SO4? The conjugate base of H2SO4 (sulfuric acid) is HSO4- (hydrogen sulfate ion).
What is the conjugate base of HCO3 and H2O? The conjugate base of HCO3- (bicarbonate ion) is CO3^2- (carbonate ion), and the conjugate base of H2O (water) is OH- (hydroxide ion).
What is the conjugate base of HSO4−? The conjugate base of HSO4- (hydrogen sulfate ion) is SO4^2- (sulfate ion).
What is the conjugate acid-base pair HCl? The conjugate acid-base pair involving HCl (hydrochloric acid) is HCl (acid) and Cl- (chloride ion, its conjugate base).
What is the conjugate base of NH4? The conjugate base of NH4+ (ammonium ion) is NH3 (ammonia).
What is the conjugate acid of NaOH? The conjugate acid of NaOH (sodium hydroxide) is NaOH itself. NaOH is a strong base and does not readily accept protons to form a conjugate acid.
How do you find the conjugate? To find the conjugate, you identify the acid or base in a chemical reaction, and the conjugate is the species formed by adding or removing a proton (H+).
Is HCO3 an acid or base? HCO3- (bicarbonate ion) can act as a weak base or a weak acid depending on the context of the reaction.
What is a conjugate base example? An example of a conjugate base is Cl- (chloride ion), which is the conjugate base of the strong acid HCl.
What is the conjugate acid of NO3? NO3- (nitrate ion) does not have a conjugate acid as it is a negatively charged ion.
What is the conjugate base of H2SO3? The conjugate base of H2SO3 (sulfurous acid) is HSO3- (hydrogen sulfite ion).
Is H2O and OH a conjugate acid-base pair? Yes, H2O (water) and OH- (hydroxide ion) form a conjugate acid-base pair. H2O is the conjugate acid of OH-.
What is the conjugate acid of HCl and NH3? The conjugate acid of HCl (hydrochloric acid) is H3O+ (hydronium ion), and the conjugate acid of NH3 (ammonia) is NH4+ (ammonium ion).
Is NH2 a conjugate base? NH2- (amide ion) is a conjugate base.
What is the conjugate acid of NH2? The conjugate acid of NH2- (amide ion) is NH3 (ammonia).
What is the conjugate acid of O2? O2 (molecular oxygen) does not have a conjugate acid as it is a molecule, not an acid or base.
What is the conjugate of H2CO3? The conjugate base of H2CO3 (carbonic acid) is HCO3- (bicarbonate ion).
Is HNO3 and HNO2 a conjugate acid-base pair? Yes, HNO3 (nitric acid) and HNO2 (nitrous acid) form a conjugate acid-base pair.
Is NH4+ a base or acid? NH4+ (ammonium ion) is an acid as it can donate a proton (H+) to form NH3 (ammonia).
Is NH4Cl a conjugate acid of NH3? NH4Cl (ammonium chloride) can act as a source of NH4+ ions, which is the conjugate acid of NH3.
Is NH3 H2O NH4 OH an acid or base? NH3 (ammonia) and H2O (water) can act as bases, while NH4+ (ammonium ion) and OH- (hydroxide ion) can act as acids in various chemical reactions.
What is the conjugate base of OH? The conjugate base of OH- (hydroxide ion) is H2O (water).
What are the conjugate bases for NH3 and H2O respectively? The conjugate base of NH3 (ammonia) is NH2- (amide ion), and the conjugate base of H2O (water) is OH- (hydroxide ion).
What is the conjugate base of H3PO4? The conjugate base of H3PO4 (phosphoric acid) is H2PO4- (dihydrogen phosphate ion).
What is the conjugate base of H2SO4 and H2O? The conjugate base of H2SO4 (sulfuric acid) is HSO4- (hydrogen sulfate ion), and the conjugate base of H2O (water) is OH- (hydroxide ion).
What is the conjugate base of HC2H3O2? The conjugate base of HC2H3O2 (acetic acid) is C2H3O2- (acetate ion).
What is the conjugate base of HCl and H2O? The conjugate base of HCl (hydrochloric acid) is Cl- (chloride ion), and the conjugate base of H2O (water) is OH- (hydroxide ion).
What is the conjugate base of C2H5OH? The conjugate base of C2H5OH (ethanol) is C2H5O- (ethoxide ion).
What is the conjugate acid of HBr? The conjugate acid of HBr (hydrobromic acid) is Br- (bromide ion).
What is the conjugate acid of H2PO4? The conjugate acid of H2PO4- (dihydrogen phosphate ion) is H3PO4 (phosphoric acid).
What is the conjugate base of NH3 and HSO4? The conjugate base of NH3 (ammonia) is NH2- (amide ion), and the conjugate base of HSO4- (hydrogen sulfate ion) is SO4^2- (sulfate ion).
What is the conjugate base of H2O2? The conjugate base of H2O2 (hydrogen peroxide) is HO2- (hydroperoxide ion).
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