Oxisal acid

Oxisal acid . Oxyacids with more than one hydrogen do not yield all of them as easily. Ions that still contain H atoms are formed. These ions can combine with cations giving rise to acidic salts.

Summary

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• 1 Nomenclature
  • 1 NaHCO ₃
  • 2 Sodium hydrogensulfite
  • 3 Cation anion name
• 2 IUPAC systematic nomenclature
• 3 Source

Nomenclature

They are named the same as neutral salts by adding the prefixes hydrogen- or dihydrogen – before the name of the corresponding neutral salt.
If the formula is given

NaHCO ₃

1. a) Salt is dissociated into its ions. The charge of the anion (negative ion) is deduced from the charge of the cation (positive ion).
   b) The oxidation number of the central atom is deduced, knowing that oxygen has an oxidation number (-2) and hydrogen (+1).
   c) Remember the oxidation numbers with which the central elements can act, and assign prefixes and suffixes.
   The Stocknomenclature is followed , therefore if the metal may have other oxidation numbers, the one in the compound is indicated in parentheses.

Sodium hydrogensulfite

1. a) Indicate which is the cation. If there are several possible oxidation numbers, it must be indicated by the Stock nomenclature. And deduce by the prefixes and suffixes the oxidation number of the central element that participates in the anion.
   b) Formulate the oxacid of S ⁺⁴.
   c) Deduct the anion from the acid. The anion is left with as many negative charges as hydrogens lose the acid.
   Write the compound so that it is electrically neutral, placing stoichiometric coefficients that indicate how many cations and anions participate in the formula.

Cation anion name

• NaHCO ₃Na ⁺¹ (HCO ₃ ) – Sodium Hydrogencarbonate.
• Fe _(HSO 4) 3 Fe ⁺³ (HSO ₄ ) Iron (III) Hydrogen Sulfate .
• Ca ( _HSO 3) 2 Ca ⁺² (HSO ₃ ) Calcium Hydrogen Sulfite.
• Ca (H ₂PO ₄ ) 2 Ca ⁺² (H ₂ PO ₄ ) Calcium Dihydrogen Phosphate.
• K ₂HPO ₄ K ⁺¹ (HPO ₄ ) ^-2 Potassium hydrogen phosphate.

IUPAC systematic nomenclature

1. The anion, or negative ion, is named as in acids, preceded by hydrogen- or dihydrogen-.
2. The charge of the anion is twice that of the oxygens minus the sum of the oxidation number of the central element and the hydrogens.
3. Cation Anion Name.

• NaHCO ₃Na ⁺¹ (HCO ₃ ) – Sodium Hydrogen Carbonate
• Fe (HSO ₄) 3 Fe ⁺³ (HSO ₄ ) – Iron (III) Hydrogen Sulfate
• Ca _(HSO 3) 2 Ca ⁺² (HSO ₃ ) – Calcium Hydrogen Sulfate
• Ca _H 2PO ₄ ) 2 Ca ⁺² (H ₂ PO ₄ ) – Calcium Hydrophosphate
• K ₂HPO ₄ K ⁺³ (HPO ₄ ) ^-2 Potassium Hydrophosphate