Washing Soda Is a Hydrate of Sodium Carbonate

question 48

Multiple Choice

Washing soda is a hydrate of sodium carbonate. Elemental analysis of a sample of washing soda gave 4.20% C and 7.05% H. What is the formula for washing soda

• A) Na₂CO₃ * 2H₂O
• B) Na₂CO₃ * 4H₂O
• C) Na₂CO₃ * 6H₂O
• D) Na₂CO₃ * 8H₂O
• E) Na₂CO₃ * H₂O

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