Is common salt soluble in all types of water?

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Is common salt soluble in all types of water?

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Answer 1 · 2015-11-12T17:51:20

Most types of water do so; save for the kind that is already saturated with salt.

Explanation:

$N a C l (s) ⇌ N a^{+} (a q) + C l^{-} (a q)$ $NaCl(s) rightleftharpoons Na^+(aq) + Cl^(-)(aq)$

When we write $N a^{+} (a q)$ $Na^+(aq)$ we means the aquated sodium ion; this results from the chemical dissolution of salt in a water (i.e. aqueous) solvent. Another way of representing this would be: ${[N a {(O H_{2})}_{6}]}_{6}^{+}$ $[Na(OH_2)_6]^+$ . The reaction above is a reversible chemical equilibrium, and on standing the salt would deposit as $N a C l$ $NaCl$ crystals.

It is worthwhile at home to grow macroscopic crystals of salt. Take a saturated solution (a solution that is in equilibrium with undissolved salt), filter it, and add (precisely) 1 tiny crystal of salt. If evaporation is kept to a minimum (by covering the solution), aqueous salt will precipitate only on the 1 salt crystal that you added. I have grown very large crystals ( $2.5 \times 2.5$ $2.5xx2.5$ $c m$ $cm$ ) of salt this way.

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Is common salt soluble in all types of water?

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