25.3 g of sodium carbonate, Na₂CO₃ is dissolved in enough water to make 250 mL of solution. If sodium carbonate dissociates completely, molar concentration of sodium ion, Na⁺ and carbonate ions, CO₃²⁻ are respectively (Molar mass of Na₂CO₃ = 106 g mol⁻¹)
- A0.955 M and 1.910 M
- B1.910 M and 0.955 M
- C1.90 M and 1.910 M
- D0.477 M and 0.477 M
✓ Correct answer: B
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