General Science • ChemistryMedium
What is the chemical formula of common washing soda, which is chemically known as sodium carbonate decahydrate?
A. NaHCO3
B. Na2CO3 dot 10H2O✓ Correct Answer
C. NaOH
D. NaCl dot 2H2O
💡 Solution & Explanation
Washing soda is chemically formulated as sodium carbonate decahydrate, containing ten molecules of water of crystallization per formula unit. Sodium bicarbonate represents baking soda, while sodium hydroxide is caustic soda, and sodium chloride is common table salt. The decahydrate form effloresces upon exposure to dry air by losing water molecules. Sodium carbonate is manufactured industrially via the Solvay process.
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