In everyday life, 'salt' means the white crystals you put on your food. But in chemistry, salt has a much broader definition and includes thousands of different compounds.
Common Salt Formula: NaCl (Sodium Chloride).
Salt Formation: Acid + Base → Salt + Water.
4 Types: Normal, Acidic, Basic, Double.
Baking Soda: NaHCO₃ (an acidic salt).
Washing Soda: Na₂CO₃·10H₂O (a basic salt).
In chemistry, a salt is an ionic compound formed when an acid reacts with a base (neutralization reaction). The H⁺ from the acid combines with the OH⁻ from the base to form water, and the remaining ions form the salt.
General Equation: Acid + Base → Salt + Water Example: HCl + NaOH → NaCl + H₂O
1. Normal Salt (Neutral Salt): Formed by complete neutralization. pH ≈ 7. Example: NaCl (Common Salt), KCl.
2. Acidic Salt: Formed when only partial neutralization occurs. pH < 7. Example: NaHCO₃ (Baking Soda), NaHSO₄.
3. Basic Salt (Alkaline Salt): Contains OH⁻ group. pH > 7. Example: Ca(OH)Cl (Bleaching Powder component).
4. Double Salt: Contains two different cations or anions. Example: Alum = KAl(SO₄)₂·12H₂O.
The most famous salt is Sodium Chloride (NaCl) — ordinary table salt. It is formed from Hydrochloric acid (HCl) + Sodium Hydroxide (NaOH).
The chemical formula of common salt (table salt) is NaCl — Sodium Chloride.
Salt is formed when an acid reacts with a base in a neutralization reaction: Acid + Base → Salt + Water.
Molecular Mass of CaCO3 (Calcium Carbonate)
Molecular mass of CaCO3 (calcium carbonate) = 100 g/mol. Step-by-step calculation using atomic masses of Ca, C, and O. Class 9–11 Chemistry.
Molecular Mass of CH4 (Methane)
Learn to calculate the molecular mass of CH4 (Methane). Understand the atomic masses of Carbon and Hydrogen to get 16 u.
Molecular Mass of Ethanol (C2H5OH)
Learn the step-by-step calculation for the molecular mass of Ethanol (Ethyl Alcohol). The exact molar mass is 46.07 g/mol.
Molecular Mass of HCl (Hydrochloric Acid)
Find the molecular mass of HCl. Learn how to add the atomic mass of Hydrogen (1 u) and Chlorine (35.5 u) to get 36.5 u.
Molecular Mass of Na₂SO₄ (Sodium Sulphate)
Learn how to calculate the molecular mass of Na₂SO₄ (Sodium Sulphate) step by step. The answer is 142 g/mol.
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