Question

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 ions, Na⁺ and carbonate ions, $CO_3^{2-}$ are respectively (Molar mass of Na₂CO₃ = 106 g mol⁻¹)
(a) 0.955 M and 1.910 M
(b) 1.910 M and 0.955 M
(c) 1.90 M and 1.910 M
(d) 0.477 M and 0.477 M

Answer 1

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