Question

NaCl is common table salt and is an ionic compound. Table salt can be stirred into water to create a salt-water solution. What happens to the solubility of sodium chlorate, NaClO3, as the temperature of the water rises?
A) they increase
B) they decrease
C) they stay the same
D) one increases and the other decreases

Answer 1

IF the amount of NaCl stays the same, and you are only adding NaClO3 then the answer is A

Answer 2

Answer: Option (A) is the correct answer.

Explanation:

It is known that sodium chlorate is an ionic compound as the bond is formed between a metal and non-metal.

Therefore, when sodium chlorate is mixed in water then it will dissociate into ions. Also there is increase in temperature which will help in breaking ionic bond between the sodium and chlorate ions.

The chemical equation for the reaction will be as follows.

       $NaClO_{3}(s) + H_{2}O(l) + Heat \rightarrow Na^{+}(aq) + ClO^{-}_{3}(aq)$

Therefore, we can conclude that solubility of sodium chlorate, $NaClO_{3}$ increases as the temperature of the water rises.