Chemical formulas tell us exactly which elements make up a compound and in what ratios. The formula $Al_2(SO_4)_3$ is an important ionic compound widely used in industries.
Aluminum Sulfate is highly soluble in water.
When dissolved in water, it creates a mildly acidic solution.
It is commonly referred to in Hindi as 'Phitkari' (Alum), though technically Alum is a double salt containing aluminum sulfate.
The chemical name for $Al_2(SO_4)_3$ is Aluminum Sulfate (or Aluminium Sulphate).
Aluminum has a valency of +3. Sulfate has a valency of -2. Using the crisscross method to balance the charges, we need two Aluminum ions to balance three Sulfate ions: $2 \times (+3) = +6$ and $3 \times (-2) = -6$. Hence, $Al_2(SO_4)_3$.
It causes the fine suspended clay particles to clump together (coagulation) and sink to the bottom, clearing the water.
What Turns Red Litmus Paper Blue? Acid-Base Indicators
Find out what turns red litmus paper blue in chemistry. Learn about basic (alkaline) solutions, litmus tests, and common household bases.
The Reaction is Spontaneous When... (Thermodynamics)
Learn the exact condition for a spontaneous reaction. Understand why a chemical reaction is spontaneous only when Gibbs Free Energy (Delta G) is negative.
Which Acid is Present in Tomato?
Learn which acid is naturally present in tomatoes. Discover oxalic acid and citric acid in tomatoes, why tomatoes taste sour, and their effect on health.
Which Acid is Present in Tomatoes?
Find out which primary acid is present in tomatoes. Learn about Citric acid, Malic acid, and Oxalic acid found in this common vegetable/fruit.
Which Gas Cannot Be Collected Over Water?
Learn which gases cannot be collected by the water displacement method in Chemistry lab. Understand why soluble gases like HCl, SO2, NH3 dissolve in water.
Turn this guide into revision flashcards, a practice exam, or an AI-generated podcast — free, no signup required.