A solution of sodium sulfate contains

Question:

A solution of sodium sulfate contains $92 \mathrm{~g}$ of $\mathrm{Na}^{+}$ions per kilogram of water. The molality of $\mathrm{Na}^{+}$ions in that solution in $\mathrm{mol} \mathrm{kg}^{-1}$ is:

  1. 16

  2. 8

  3. 4

  4. 12


Correct Option: , 4

Solution:

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