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MHT CET Chemistry question

ChemistrySome Basic Concepts of ChemistryMHT CET

25.3 g of sodium carbonate, is dissolved in enough water to make 250 mL of solution. If sodium carbonate dissociates completely, molar concentration of sodium ion, and carbonate ions, are respectively (Molar mass of = 106 g mol)

Answer: (C)

Solution

Moles = 25.3/106 = 0.2387 mol in 0.25 L, so M; each formula unit gives 2 and 1 , so

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Question ID VK-061227