What is the chemical formula of washing soda in its anhydrous form?

💡 Solution & Explanation

Sodium carbonate in its anhydrous form has the chemical formula Na2CO3, whereas washing soda typically crystallizes with ten molecules of water as a decahydrate. Options like sodium bicarbonate represent baking soda, and sodium hydroxide is a strong alkali commonly known as caustic soda. Anhydrous sodium carbonate, or soda ash, finds extensive industrial application in glass manufacturing, paper production, and water softening.