250 gm sodium carbonate was dissolve in 750 gm of water . calculate the concentration of solution in %
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Explanation:
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
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