calculate the molarity of the sodium carbonate in a solution prepared by dissolving 5.3gr of the enough water to form 250ml of the solution?
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Answer:
Number of moles of Na
2
CO
3
=
106
25.3
=0.239 moles
Molarity of solution=
0.25
0.239
=0.956mol/litre
Na
2
CO
3
⟶2Na
+
+CO
3
2−
∴ Concentration of CO
3
2−
=0.956M
Concentration of Na
+
=2×0.956=1.912M
Explanation:
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