Basic chemistry (common names): What is the chemical compound popularly known as washing soda? Identify the correct inorganic salt corresponding to the household name. Choose the correct compound.
General Knowledge
General Science
Difficulty: Easy
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Answer
Correct Answer: Sodium carbonate (Na2CO3 · 10H2O)
Explanation
What is being asked?The chemical identity behind the household name "washing soda".
Given data
- Common name: Washing soda
Concept/ApproachWashing soda is the decahydrate of sodium carbonate: Na2CO3·10H2O. (Do not confuse with baking soda = NaHCO3.)
Step-by-step reasoningSodium carbonate decahydrate is used as a water softener/alkali in cleaning → hence the name "washing soda".
Common pitfallsMixing up washing soda (Na2CO3·10H2O) with baking soda (NaHCO3).
Final AnswerSodium carbonate (Na2CO3·10H2O)